[llvm-strip] Check "strip" with StringRef::contains instead of ends_with

Summary: If argv[0] is version suffixed, e.g. llvm-strip-7, this will still work.

Reviewers: rupprecht, jhenderson, alexshap, jakehehrlich

Reviewed By: rupprecht

Subscribers: alexshap, jakehehrlich, llvm-commits

Differential Revision: https://reviews.llvm.org/D54193

llvm-svn: 346292

llvm/tools/llvm-objcopy/llvm-objcopy.cpp

@@ -219,7 +219,7 @@ int main(int argc, char **argv) {
   InitLLVM X(argc, argv);
   ToolName = argv[0];
   DriverConfig DriverConfig;
-  if (sys::path::stem(ToolName).endswith_lower("strip"))
+  if (sys::path::stem(ToolName).contains("strip"))
     DriverConfig = parseStripOptions(makeArrayRef(argv + 1, argc));
   else
     DriverConfig = parseObjcopyOptions(makeArrayRef(argv + 1, argc));