Fix make help indentation

Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>

Makefile

@@ -41,23 +41,23 @@ all: dev dist
 help:
 	@echo "Please use \`make <target>' where <target> is one of the following:"
 	@echo ""
-	@echo " all		   		A synonym for 'make dev'."
-	@echo " build		 	Create minified builds of converse.js and all its dependencies."
-	@echo " clean		 	Remove all NPM and Ruby packages."
-	@echo " check			Run all tests."
-	@echo " css		   		Generate CSS from the Sass files."
-	@echo " dev		   		Set up the development environment. To force a fresh start, run 'make clean' first."
-	@echo " html		  	Make standalone HTML files of the documentation."
-	@echo " po				Generate gettext PO files for each i18n language."
-	@echo " po2json	   		Generate JSON files from the language PO files."
-	@echo " pot		   		Generate a gettext POT file to be used for translations."
-	@echo " release	   		Prepare a new release of converse.js. E.g. make release VERSION=0.9.5"
-	@echo " serve		 	Serve this directory via a webserver on port 8000."
-	@echo " serve_bg	  	Same as \"serve\", but do it in the background"
-	@echo " stamp-npm	 	Install NPM dependencies"
-	@echo " stamp-bundler 	Install Bundler (Ruby) dependencies"
-	@echo " watch		 	Tells Sass to watch the .scss files for changes and then automatically update the CSS files."
-	@echo " logo		  	Generate PNG logos of multiple sizes."
+	@echo " all             A synonym for 'make dev'."
+	@echo " build           Create minified builds of converse.js and all its dependencies."
+	@echo " clean           Remove all NPM and Ruby packages."
+	@echo " check           Run all tests."
+	@echo " css             Generate CSS from the Sass files."
+	@echo " dev             Set up the development environment. To force a fresh start, run 'make clean' first."
+	@echo " html            Make standalone HTML files of the documentation."
+	@echo " po              Generate gettext PO files for each i18n language."
+	@echo " po2json         Generate JSON files from the language PO files."
+	@echo " pot             Generate a gettext POT file to be used for translations."
+	@echo " release         Prepare a new release of converse.js. E.g. make release VERSION=0.9.5"
+	@echo " serve           Serve this directory via a webserver on port 8000."
+	@echo " serve_bg        Same as \"serve\", but do it in the background"
+	@echo " stamp-npm       Install NPM dependencies"
+	@echo " stamp-bundler   Install Bundler (Ruby) dependencies"
+	@echo " watch           Tells Sass to watch the .scss files for changes and then automatically update the CSS files."
+	@echo " logo            Generate PNG logos of multiple sizes."
 
 
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