revised kotlin compiler settings vim

vim/.vim/compiler/kotlin.vim

@@ -1,4 +1,3 @@
-" Made by chatgpt Mon Aug 31 12:38:12 AM CEST 2026
 " Vim compiler file
 " Compiler:       Gradle Wrapper (Kotlin)
 
@@ -13,13 +12,7 @@ set cpo&vim
 CompilerSet makeprg=./gradlew
 
 CompilerSet errorformat=
-      \%E%f:%l:%c\ %m,
-      \%W%f:%l:%c\ %m,
-      \%-G%.%#
-
-if exists('g:compiler_gradlew_kotlin_ignore_unmatched_lines')
-  CompilerSet errorformat+=%-G%.%#
-endif
+      \%t:\ file://%f:%l:%c\ %m
 
 let &cpo = s:cpo_save
 unlet s:cpo_save