[NFC] Adding "REQUIRES: zlib" to a llvm-objcopy test for bots without zlib.

M    test/tools/llvm-objcopy/compress-and-decompress-debug-sections-error.test

llvm-svn: 343454
diff --git a/llvm/test/tools/llvm-objcopy/compress-and-decompress-debug-sections-error.test b/llvm/test/tools/llvm-objcopy/compress-and-decompress-debug-sections-error.test
index 0478c22..0866e20 100644
--- a/llvm/test/tools/llvm-objcopy/compress-and-decompress-debug-sections-error.test
+++ b/llvm/test/tools/llvm-objcopy/compress-and-decompress-debug-sections-error.test
@@ -1,3 +1,5 @@
+# REQUIRES: zlib
+
 # RUN: yaml2obj %p/Inputs/compress-debug-sections.yaml -o %t.o
 # RUN: not llvm-objcopy --compress-debug-sections=zlib --decompress-debug-sections %t.o 2>&1 | FileCheck %s