Fix LLVM template

backend/src/langs.ts

@@ -1000,26 +1000,15 @@ PLEASE GIVE UP
     main: "main.ll",
     compile: "clang -Wno-override-module main.ll -o main",
     run: "./main",
-    template: `; Copied directly from the documentation
-; Declare the string constant as a global constant.
-@.str = private unnamed_addr constant [13 x i8] c"hello world\\0A\\00"
+    template: `@.str = private unnamed_addr constant [13 x i8] c"Hello, world!"
 
-; External declaration of the puts function
 declare i32 @puts(i8* nocapture) nounwind
 
-; Definition of main function
-define i32 @main() { ; i32()*
-    ; Convert [13 x i8]* to i8  *...
+define i32 @main() {
     %cast210 = getelementptr [13 x i8],[13 x i8]* @.str, i64 0, i64 0
-
-    ; Call puts function to write out the string to stdout.
     call i32 @puts(i8* %cast210)
     ret i32 0
 }
-
-; Named metadata
-!0 = !{i32 42, null, !"string"}
-!foo = !{!0}
 `,
   },
   lolcode: {