diff --git a/.markdownlint.yaml b/.markdownlint.yaml
index 4f8a9799..6bf4ccd9 100644
--- a/.markdownlint.yaml
+++ b/.markdownlint.yaml
@@ -1,3 +1,4 @@
+---
 # Default state for all rules
 default: true
 
diff --git a/.sanity-ansible-ignore-2.12.txt b/.sanity-ansible-ignore-2.12.txt
index bb798839..b7bd236f 100644
--- a/.sanity-ansible-ignore-2.12.txt
+++ b/.sanity-ansible-ignore-2.12.txt
@@ -1,5 +1,2 @@
 plugins/modules/firewall_lib.py validate-modules:missing-gplv3-license
 plugins/modules/firewall_lib_facts.py validate-modules:missing-gplv3-license
-plugins/modules/firewall_lib.py validate-modules:missing-examples
-roles/firewall/files/get_files_checksums.sh shebang!skip
-tests/firewall/files/test_ping.sh shebang!skip
diff --git a/.sanity-ansible-ignore-2.13.txt b/.sanity-ansible-ignore-2.13.txt
index bb798839..b7bd236f 100644
--- a/.sanity-ansible-ignore-2.13.txt
+++ b/.sanity-ansible-ignore-2.13.txt
@@ -1,5 +1,2 @@
 plugins/modules/firewall_lib.py validate-modules:missing-gplv3-license
 plugins/modules/firewall_lib_facts.py validate-modules:missing-gplv3-license
-plugins/modules/firewall_lib.py validate-modules:missing-examples
-roles/firewall/files/get_files_checksums.sh shebang!skip
-tests/firewall/files/test_ping.sh shebang!skip
diff --git a/.sanity-ansible-ignore-2.14.txt b/.sanity-ansible-ignore-2.14.txt
index bb798839..b7bd236f 100644
--- a/.sanity-ansible-ignore-2.14.txt
+++ b/.sanity-ansible-ignore-2.14.txt
@@ -1,5 +1,2 @@
 plugins/modules/firewall_lib.py validate-modules:missing-gplv3-license
 plugins/modules/firewall_lib_facts.py validate-modules:missing-gplv3-license
-plugins/modules/firewall_lib.py validate-modules:missing-examples
-roles/firewall/files/get_files_checksums.sh shebang!skip
-tests/firewall/files/test_ping.sh shebang!skip
diff --git a/.sanity-ansible-ignore-2.15.txt b/.sanity-ansible-ignore-2.15.txt
index bb798839..b7bd236f 100644
--- a/.sanity-ansible-ignore-2.15.txt
+++ b/.sanity-ansible-ignore-2.15.txt
@@ -1,5 +1,2 @@
 plugins/modules/firewall_lib.py validate-modules:missing-gplv3-license
 plugins/modules/firewall_lib_facts.py validate-modules:missing-gplv3-license
-plugins/modules/firewall_lib.py validate-modules:missing-examples
-roles/firewall/files/get_files_checksums.sh shebang!skip
-tests/firewall/files/test_ping.sh shebang!skip
diff --git a/.sanity-ansible-ignore-2.9.txt b/.sanity-ansible-ignore-2.9.txt
index bb798839..b7bd236f 100644
--- a/.sanity-ansible-ignore-2.9.txt
+++ b/.sanity-ansible-ignore-2.9.txt
@@ -1,5 +1,2 @@
 plugins/modules/firewall_lib.py validate-modules:missing-gplv3-license
 plugins/modules/firewall_lib_facts.py validate-modules:missing-gplv3-license
-plugins/modules/firewall_lib.py validate-modules:missing-examples
-roles/firewall/files/get_files_checksums.sh shebang!skip
-tests/firewall/files/test_ping.sh shebang!skip
diff --git a/files/get_files_checksums.sh b/files/get_files_checksums.sh
index b0a4ef93..334f3c08 100755
--- a/files/get_files_checksums.sh
+++ b/files/get_files_checksums.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -euo pipefail
 
diff --git a/library/firewall_lib.py b/library/firewall_lib.py
index aa947892..9405a923 100644
--- a/library/firewall_lib.py
+++ b/library/firewall_lib.py
@@ -59,6 +59,7 @@
     required: false
     type: list
     elements: str
+    default: []
   port:
     description:
       List of ports or port range strings.
@@ -66,6 +67,7 @@
     required: false
     type: list
     elements: str
+    default: []
   source_port:
     description:
       List of source port or port range strings.
@@ -73,6 +75,7 @@
     required: false
     type: list
     elements: str
+    default: []
   forward_port:
     description:
       List of forward port strings or dicts,
@@ -82,6 +85,7 @@
     aliases: ["port_forward"]
     required: false
     type: raw
+    default: []
   masquerade:
     description:
       The masquerade bool setting.
@@ -94,6 +98,7 @@
     required: false
     type: list
     elements: str
+    default: []
   source:
     description:
       List of source address, address range strings, or ipsets
@@ -104,12 +109,14 @@
     required: false
     type: list
     elements: str
+    default: []
   interface:
     description:
       List of interface name strings.
     required: false
     type: list
     elements: str
+    default: []
   interface_pci_id:
     description:
       List of inteface PCI device ID strings.
@@ -117,6 +124,7 @@
     required: false
     type: list
     elements: str
+    default: []
   icmp_block:
     description:
       List of ICMP type strings to block.
@@ -124,6 +132,7 @@
     required: false
     type: list
     elements: str
+    default: []
   icmp_block_inversion:
     description:
       ICMP block inversion bool setting.
@@ -178,6 +187,7 @@
     required: false
     type: list
     elements: str
+    default: []
   permanent:
     description:
       The permanent bool flag.
@@ -222,12 +232,14 @@
     required: false
     type: list
     elements: str
+    default: []
   helper_module:
     description:
       List of netfiler kernel helper module names
     required: false
     type: list
     elements: str
+    default: []
   destination:
     description:
       List of IPv4/IPv6 addresses with optional mask
@@ -237,6 +249,7 @@
     required: false
     type: list
     elements: str
+    default: []
   __report_changed:
     description:
       If false, do not report changed true even if changed.
@@ -245,6 +258,11 @@
     default: true
 """
 
+EXAMPLES = """
+firewall:
+  - port: ['443/tcp', '443/udp']
+"""
+
 from ansible.module_utils.basic import AnsibleModule
 import re
 import os
diff --git a/tests/files/test_ping.sh b/tests/files/test_ping.sh
index 8727c09a..63f22490 100755
--- a/tests/files/test_ping.sh
+++ b/tests/files/test_ping.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Author - Brennan Paciorek <bpaciore@redhat.com>
 # Description - Benchmark firewalld downtime while reloading and while restarting
 # by measuring how many packets are dropped while firewalld is restarting/reloading