Use C++11 override instead of CM_OVERRIDE

We now require C++11 support including `override`.  Drop use of
the old compatibility macro.  Convert references as follows:

    git grep -l CM_OVERRIDE -- '*.h' '*.hxx' '*.cxx' |
      xargs sed -i 's/CM_OVERRIDE/override/g'

1 files changed, 4 insertions, 4 deletions

diff --git a/Source/cmInstallDirectoryGenerator.h b/Source/cmInstallDirectoryGenerator.h
index d6995990f0..ac6e50457d 100644
--- a/Source/cmInstallDirectoryGenerator.h
+++ b/Source/cmInstallDirectoryGenerator.h
@@ -27,16 +27,16 @@ public:
                               const char* component, MessageLevel message,
                               bool exclude_from_all, const char* literal_args,
                               bool optional = false);
-  ~cmInstallDirectoryGenerator() CM_OVERRIDE;
+  ~cmInstallDirectoryGenerator() override;
 
-  void Compute(cmLocalGenerator* lg) CM_OVERRIDE;
+  void Compute(cmLocalGenerator* lg) override;
 
   std::string GetDestination(std::string const& config) const;
 
 protected:
-  void GenerateScriptActions(std::ostream& os, Indent indent) CM_OVERRIDE;
+  void GenerateScriptActions(std::ostream& os, Indent indent) override;
   void GenerateScriptForConfig(std::ostream& os, const std::string& config,
-                               Indent indent) CM_OVERRIDE;
+                               Indent indent) override;
   void AddDirectoryInstallRule(std::ostream& os, const std::string& config,
                                Indent indent,
                                std::vector<std::string> const& dirs);