Missed some StringRefRefs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122077 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/PathV2.cpp b/lib/Support/PathV2.cpp
index 2a4c458..6e24877 100644
--- a/lib/Support/PathV2.cpp
+++ b/lib/Support/PathV2.cpp
@@ -39,7 +39,7 @@
 
   const llvm::error_code success;
 
-  StringRef find_first_component(const StringRef  &path) {
+  StringRef find_first_component(StringRef path) {
     // Look for this first component in the following order.
     // * empty (in this case we return an empty string)
     // * either C: or {//,\\}net.