STYLE: Fix line-too-long

Source/cmGlobalXCodeGenerator.h

@@ -152,7 +152,8 @@ private:
   virtual void  WriteXCodePBXProj(std::ostream& fout,
                                   cmLocalGenerator* root,
                                   std::vector<cmLocalGenerator*>& generators);
-  cmXCodeObject* CreateXCodeFileReference(cmSourceFile* sf, cmTarget& cmtarget);
+  cmXCodeObject* CreateXCodeFileReference(cmSourceFile* sf,
+                                          cmTarget& cmtarget);
   cmXCodeObject* CreateXCodeSourceFile(cmLocalGenerator* gen, 
                                        cmSourceFile* sf,
                                        cmTarget& cmtarget);