Cleaner git-fork code for github API call

bin/git-fork

@@ -31,9 +31,12 @@ fi
 [ -z "$project" -o -z "$owner" ] && abort "github repo needs to be specified as an argument"
 
 # create fork
-curl_args="-qs -X POST -u $user"
-curl_url="https://api.github.com/repos/$owner/$project/forks"
-RES=$(curl -H "X-GitHub-OTP: $MFA_CODE" $curl_args "$curl_url")
+curl -qs \
+  -X POST \
+  -u "$user" \
+  -H "X-GitHub-OTP: $MFA_CODE" \
+  "https://api.github.com/repos/$owner/$project/forks"
+
 [ $? = 0 ] || abort "fork failed"
 
 # Check if user has ssh configured with GitHub
@@ -45,13 +48,13 @@ fi
 
 if [ "$origin" = true ]; then
     git remote rename origin upstream
-    git remote add origin "$remote_prefix$user/${project}.git"
+    git remote add origin "${remote_prefix}${user}/${project}.git"
     git fetch origin
 else
     # clone forked repo into current dir
-    git clone "$remote_prefix$user/${project}.git" "$project"
+    git clone "${remote_prefix}${user}/${project}.git" "$project"
     # add reference to origin fork so can merge in upstream changes
     cd "$project"
-    git remote add upstream "$remote_prefix$owner/${project}.git"
+    git remote add upstream "${remote_prefix}${owner}/${project}.git"
     git fetch upstream
 fi