Fix

Author: kuhar

clang/lib/Sema/SemaDeclAttr.cpp

@@ -3632,8 +3632,8 @@ static FormatAttrKind getFormatAttrKind(StringRef Format) {
       .Cases({"gnu_strftime", "strftime"}, StrftimeFormat)
 
       // Otherwise, check for supported formats.
-      .Cases({"gnu_scanf", "scanf", "gnu_printf", "printf", "printf0"},
-             "gnu_strfmon", "strfmon", SupportedFormat)
+      .Cases({"gnu_scanf", "scanf", "gnu_printf", "printf", "printf0",
+             "gnu_strfmon", "strfmon"}, SupportedFormat)
       .Cases({"cmn_err", "vcmn_err", "zcmn_err"}, SupportedFormat)
       .Cases({"kprintf", "syslog"}, SupportedFormat) // OpenBSD.
       .Case("freebsd_kprintf", SupportedFormat)      // FreeBSD.