[llvm-objcopy] Changed command line parsing errors

Summary: Tidied up errors during command line parsing to be more consistent with the rest of llvm-objcopy errors.

Reviewers: jhenderson, rupprecht, espindola, alexshap

Reviewed By: jhenderson, rupprecht

Subscribers: emaste, arichardson, MaskRay, llvm-commits, jakehehrlich

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62973

llvm-svn: 363350
diff --git a/llvm/test/tools/llvm-objcopy/ELF/binary-input-error.test b/llvm/test/tools/llvm-objcopy/ELF/binary-input-error.test
index 4b7736e..08cc22c 100644
--- a/llvm/test/tools/llvm-objcopy/ELF/binary-input-error.test
+++ b/llvm/test/tools/llvm-objcopy/ELF/binary-input-error.test
@@ -6,5 +6,5 @@
 # RUN: not llvm-objcopy -I binary -B xyz %t.txt %t.o 2>&1 \
 # RUN:   | FileCheck %s --check-prefix=BAD-BINARY-ARCH
 
-# MISSING-BINARY-ARCH: Specified binary input without specifiying an architecture
-# BAD-BINARY-ARCH: Invalid architecture: 'xyz'
+# MISSING-BINARY-ARCH: specified binary input without specifiying an architecture
+# BAD-BINARY-ARCH: invalid architecture: 'xyz'