Update for PrintHelpMessage not calling exit.

llvm-svn: 312769
diff --git a/clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp b/clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp
index 803dca1..a57fde8 100644
--- a/clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp
+++ b/clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp
@@ -392,13 +392,13 @@
   if (EnabledChecks.empty()) {
     llvm::errs() << "Error: no checks enabled.\n";
     llvm::cl::PrintHelpMessage(/*Hidden=*/false, /*Categorized=*/true);
-    return 1;
+    return 0;
   }
 
   if (PathList.empty()) {
     llvm::errs() << "Error: no input files specified.\n";
     llvm::cl::PrintHelpMessage(/*Hidden=*/false, /*Categorized=*/true);
-    return 1;
+    return 0;
   }
 
   ProfileData Profile;
diff --git a/clang-tools-extra/modularize/Modularize.cpp b/clang-tools-extra/modularize/Modularize.cpp
index 83f2340..e5f19de 100644
--- a/clang-tools-extra/modularize/Modularize.cpp
+++ b/clang-tools-extra/modularize/Modularize.cpp
@@ -825,7 +825,7 @@
   // No go if we have no header list file.
   if (ListFileNames.size() == 0) {
     cl::PrintHelpMessage();
-    return 1;
+    return 0;
   }
 
   std::unique_ptr<ModularizeUtilities> ModUtil;