Merge pull request 'Ensure , is escaped in ::js::escape' (#45) from df/webif:df-listdirs-patch-v2 into master

Reviewed-on: #45

webif/lib/utils

@@ -102,7 +102,7 @@ proc ::js::_unescape {str} {
 
 proc ::js::escape {str} {
 	return [subst -nobackslashes -novariables \
-		[regsub -all -- {[^A-Za-z0-9@*_+-./]+} $str \
+		[regsub -all -- {[^A-Za-z0-9@*_+./-]+} $str \
 			{[::js::_escape {&}]}]]
 }