Revert "[llvm-readobj] Improve error message for --string-dump"

This reverts commit 681b0798dbbc6b3500c9930977ec8a274b142acb.

Reverted due to causing build failures: llvm-svn: 357772

llvm-svn: 357774
diff --git a/llvm/test/tools/llvm-readobj/codeview-merging-cycle.test b/llvm/test/tools/llvm-readobj/codeview-merging-cycle.test
index 4d612e8..f597ad6 100644
--- a/llvm/test/tools/llvm-readobj/codeview-merging-cycle.test
+++ b/llvm/test/tools/llvm-readobj/codeview-merging-cycle.test
@@ -1,6 +1,6 @@
 ; RUN: not llvm-readobj -codeview-merged-types %S/Inputs/codeview-cycle.obj 2>&1 | FileCheck %s
 
-; CHECK: error{{.*}} Input type graph contains cycles
+; CHECK: Error{{.*}} Input type graph contains cycles
 
 ; To reproduce codeview-cycle.obj:
 ; $ cat codeview-cycle.asm