Merge pull request #4481 from authmillenon/uncrustify/enh/ignore-return-parens

uncrustify: ignore parens on return

uncrustify-riot.cfg

@@ -28,7 +28,7 @@ nl_fdef_brace       = add       # "int foo() {" vs "int foo()\n{"
 # Source code modifications
 #
 
-mod_paren_on_return = remove    # "return 1;" vs "return (1);"
+mod_paren_on_return = ignore    # "return 1;" vs "return (1);"
 mod_full_brace_if   = add       # "if() { } else { }" vs "if() else"
 
 #