Use errs() instead of std::cerr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75791 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/bugpoint/BugDriver.cpp b/tools/bugpoint/BugDriver.cpp
index 269bf5f..ac5de15 100644
--- a/tools/bugpoint/BugDriver.cpp
+++ b/tools/bugpoint/BugDriver.cpp
@@ -117,13 +117,13 @@
         std::cout << "Linking in input file: '" << Filenames[i] << "'\n";
       std::string ErrorMessage;
       if (Linker::LinkModules(Program, M.get(), &ErrorMessage)) {
-        std::cerr << ToolName << ": error linking in '" << Filenames[i] << "': "
-                  << ErrorMessage << '\n';
+        errs() << ToolName << ": error linking in '" << Filenames[i] << "': "
+               << ErrorMessage << '\n';
         return true;
       }
     }
   } catch (const std::string &Error) {
-    std::cerr << ToolName << ": error reading input '" << Error << "'\n";
+    errs() << ToolName << ": error reading input '" << Error << "'\n";
     return true;
   }
 
@@ -209,7 +209,7 @@
       return debugMiscompilation();
     }
   } catch (ToolExecutionError &TEE) {
-    std::cerr << TEE.what();
+    errs() << TEE.what();
     return debugCodeGeneratorCrash();
   }
 
@@ -218,7 +218,7 @@
   try {
     return debugCodeGenerator();
   } catch (ToolExecutionError &TEE) {
-    std::cerr << TEE.what();
+    errs() << TEE.what();
     return debugCodeGeneratorCrash();
   }
 }