build: start comments at beginning of line

As the comments are indented in Makefile, they are actually echoed
on the screen. This patch makes sure that the comments actually start
at the beginning of the line, and so not echoed and ignored.

PR-URL: #9375

Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Johan Bergström <[email protected]>
Reviewed-By: Roman Reiss <[email protected]>
Reviewed-By: Gibson Fahnestock <[email protected]>
Reviewed-By: Prince John Wesley <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: James M Snell <[email protected]>

Makefile

@@ -147,8 +147,8 @@ ADDONS_BINDING_GYPS := \
 test/addons/.buildstamp: config.gypi \
 	deps/npm/node_modules/node-gyp/package.json \
 	$(ADDONS_BINDING_GYPS) test/addons/.docbuildstamp
-	# Cannot use $(wildcard test/addons/*/) here, it's evaluated before
-	# embedded addons have been generated from the documentation.
+#	Cannot use $(wildcard test/addons/*/) here, it's evaluated before
+#	embedded addons have been generated from the documentation.
 	for dirname in test/addons/*/; do \
 		$(NODE) deps/npm/node_modules/node-gyp/bin/node-gyp rebuild \
 			--python="$(PYTHON)" \
@@ -237,15 +237,15 @@ test-timers-clean:
 	$(MAKE) --directory=tools clean
 
 test-v8: v8
-	# note: performs full test unless QUICKCHECK is specified
+#	note: performs full test unless QUICKCHECK is specified
 	deps/v8/tools/run-tests.py --arch=$(V8_ARCH) \
         --mode=$(BUILDTYPE_LOWER) $(V8_TEST_NO_I18N) $(QUICKCHECK_ARG) \
         --no-presubmit \
         --shell-dir=$(PWD)/deps/v8/out/$(V8_ARCH).$(BUILDTYPE_LOWER) \
 	 $(TAP_V8)
 
 test-v8-intl: v8
-	# note: performs full test unless QUICKCHECK is specified
+#	note: performs full test unless QUICKCHECK is specified
 	deps/v8/tools/run-tests.py --arch=$(V8_ARCH) \
         --mode=$(BUILDTYPE_LOWER) --no-presubmit $(QUICKCHECK_ARG) \
         --shell-dir=deps/v8/out/$(V8_ARCH).$(BUILDTYPE_LOWER) intl \
@@ -258,7 +258,7 @@ test-v8-benchmarks: v8
 	 $(TAP_V8_BENCHMARKS)
 
 test-v8-all: test-v8 test-v8-intl test-v8-benchmarks
-	# runs all v8 tests
+# runs all v8 tests
 
 apidoc_sources = $(wildcard doc/api/*.md)
 apidocs_html = $(apidoc_dirs) $(apiassets) $(addprefix out/,$(apidoc_sources:.md=.html))