fix quote style after merge

Author: Budleigh Salterton

bin/http-server

@@ -24,8 +24,8 @@ if (argv.h || argv.help) {
     '  -i           Display autoIndex [true]',
     '  -e --ext     Default file extension if none supplied [none]',
     '  -s --silent  Suppress log messages from output',
-    "  --cors[=headers]   Enable CORS via the 'Access-Control-Allow-Origin' header",
-    "                     Optionally provide CORS headers list separated by commas",
+    '  --cors[=headers]   Enable CORS via the "Access-Control-Allow-Origin" header',
+    '                     Optionally provide CORS headers list separated by commas',
     '  -o [path]    Open browser window after starting the server',
     '  -c           Cache time (max-age) in seconds [3600], e.g. -c10 for 10 seconds.',
     '               To disable caching, use -c-1.',