[lld] r262569 - Simplify string operations. NFC.

[Rui Ueyama via llvm-commits]

Author: ruiu
Date: Wed Mar  2 18:51:23 2016
New Revision: 262569

URL: http://llvm.org/viewvc/llvm-project?rev=262569&view=rev
Log:
Simplify string operations. NFC.

Modified:
    lld/trunk/lib/Config/Version.cpp

Modified: lld/trunk/lib/Config/Version.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/lib/Config/Version.cpp?rev=262569&r1=262568&r2=262569&view=diff
==============================================================================
--- lld/trunk/lib/Config/Version.cpp (original)
+++ lld/trunk/lib/Config/Version.cpp Wed Mar  2 18:51:23 2016
@@ -35,22 +35,15 @@ StringRef getLLDRevision() {
 }
 
 std::string getLLDRepositoryVersion() {
-  std::string buf;
-  llvm::raw_string_ostream OS(buf);
-  std::string Path = getLLDRepositoryPath();
-  std::string Revision = getLLDRevision();
-  if (!Path.empty() || !Revision.empty()) {
-    OS << '(';
-    if (!Path.empty())
-      OS << Path;
-    if (!Revision.empty()) {
-      if (!Path.empty())
-        OS << ' ';
-      OS << Revision;
-    }
-    OS << ')';
-  }
-  return OS.str();
+  std::string S = getLLDRepositoryPath();
+  std::string T = getLLDRevision();
+  if (S.empty() && T.empty())
+    return "";
+  if (!S.empty() && !T.empty())
+    return "(" + S + " " + T + ")";
+  if (!S.empty())
+    return "(" + S + ")";
+  return "(" + T + ")";
 }
 
 StringRef getLLDVersion() {