llvm/test/Bitcode/invalid.ll: Tweak expresion to mach "llvm-dis.EXE:"

llvm-svn: 193738

llvm/test/Bitcode/invalid.ll

 ; RUN:  not llvm-dis < %s.bc 2>&1 | FileCheck %s
 
-; CHECK: llvm-dis: Unknown attribute kind
+; CHECK: llvm-dis{{(\.EXE|\.exe)?}}: Unknown attribute kind
 
 ; invalid.ll.bc has an invalid attribute number.
 ; The test checks that LLVM reports the error and doesn't access freed memory