cmMakefile: Fix indentation.

Source/cmMakefile.cxx

@@ -4160,10 +4160,10 @@ void cmMakefile::SetProperty(const std::string& prop, const char* value)
   if (prop == "INCLUDE_DIRECTORIES")
     {
     this->IncludeDirectoriesEntries.clear();
-      if (!value)
-        {
-        return;
-        }
+    if (!value)
+      {
+      return;
+      }
     cmListFileBacktrace lfbt = this->GetBacktrace();
     this->IncludeDirectoriesEntries.push_back(
                                         cmValueWithOrigin(value, lfbt));
@@ -4172,10 +4172,10 @@ void cmMakefile::SetProperty(const std::string& prop, const char* value)
   if (prop == "COMPILE_OPTIONS")
     {
     this->CompileOptionsEntries.clear();
-      if (!value)
-        {
-        return;
-        }
+    if (!value)
+      {
+      return;
+      }
     cmListFileBacktrace lfbt = this->GetBacktrace();
     this->CompileOptionsEntries.push_back(cmValueWithOrigin(value, lfbt));
     return;