Fix a bug introduced during the transition to PathV2.

sys::fs::createUniqueFile returns an absolute path, so MakeSharedObject does
too and we don't need to add a './' prefix.

Patch by Jon McLachlan.

llvm-svn: 203931

llvm/tools/bugpoint/ExecutionDriver.cpp

@@ -404,7 +404,7 @@ std::string BugDriver::compileSharedObject(const std::string &BitcodeFile,
   // Remove the intermediate C file
   sys::fs::remove(OutputFile);
 
-  return "./" + SharedObjectFile;
+  return SharedObjectFile;
 }
 
 /// createReferenceFile - calls compileProgram and then records the output