Highlight diff lines with only + or -

Author: TimvdLippe

components/prism-diff.js

@@ -9,12 +9,12 @@ Prism.languages.diff = {
 	],
 
 	// Match inserted and deleted lines. Support both +/- and >/< styles.
-	'deleted': /^[-<].+$/m,
-	'inserted': /^[+>].+$/m,
+	'deleted': /^[-<].*$/m,
+	'inserted': /^[+>].*$/m,
 
 	// Match "different" lines (prefixed with "!") in context diff.
 	'diff': {
 		'pattern': /^!(?!!).+$/m,
 		'alias': 'important'
 	}
-};
+};