should fix file extension issue with logs

code/__HELPERS/files.dm

@@ -3,7 +3,7 @@
 	for(var/file in args)
 		src << browse_rsc(file)
 
-/client/proc/browse_files(root="data/logs/", max_iterations=10, list/valid_extensions=list("txt","log","htm", "html"))
+/client/proc/browse_files(root="data/logs/", max_iterations=10, list/valid_extensions=list(".txt",".log",".htm", ".html"))
 	var/path = root
 
 	for(var/i=0, i<max_iterations, i++)
@@ -22,13 +22,9 @@
 
 		if(copytext(path,-1,0) != "/")		//didn't choose a directory, no need to iterate again
 			break
-	var/extensions
-	for(var/i in valid_extensions)
-		if(extensions)
-			extensions += "|"
-		extensions += valid_extensions[i]
-	var/regex/valid_ext = new("\\.([extensions])$", "i")
-	if( !fexists(path) || !(valid_ext.Find(path)) )
+
+	var/extension = copytext(path,-4,0)
+	if( !fexists(path) || !(extension in valid_extensions) )
 		to_chat(src, "<font color='red'>Error: browse_files(): File not found/Invalid file([path]).</font>")
 		return
 
@@ -65,4 +61,4 @@
 	return filenames
 
 /proc/pathflatten(path)
-	return replacetext(path, "/", "_")
+	return replacetext(path, "/", "_")