clang-tidy: fix readability-simplify-boolean-expr warnings

.clang-tidy

@@ -26,7 +26,6 @@ readability-*,\
 -readability-magic-numbers,\
 -readability-named-parameter,\
 -readability-redundant-declaration,\
--readability-simplify-boolean-expr,\
 -readability-uppercase-literal-suffix,\
 -readability-use-anyofallof,\
 "

Source/cmCPluginAPI.cxx

@@ -221,8 +221,8 @@ void CCONV cmAddUtilityCommand(void* arg, const char* utilityName,
 
   // Pass the call to the makefile instance.
   std::vector<std::string> no_byproducts;
-  mf->AddUtilityCommand(utilityName, (all ? false : true), nullptr,
-                        no_byproducts, depends2, commandLines);
+  mf->AddUtilityCommand(utilityName, !all, nullptr, no_byproducts, depends2,
+                        commandLines);
 }
 
 void CCONV cmAddCustomCommand(void* arg, const char* source,