[PATCH 3/4] gcc/c-family/c-opts: fix quoting for `-fdeps-format=` error message

[Ben Boeckel]

Fixes: 024f135a1e9 (p1689r5: initial support, 2023-09-01)

Reported-by: Roland Illig <roland.il...@gmx.de>
gcc/c-family/

        * c-opts.cc (c_common_handle_option): Fix quoting in
        `-fdeps-format=` unrecognized parameter error message.

Signed-off-by: Ben Boeckel <ben.boec...@kitware.com>
---
 gcc/c-family/c-opts.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/c-family/c-opts.cc b/gcc/c-family/c-opts.cc
index be3058dca63..4a164ad0c0b 100644
--- a/gcc/c-family/c-opts.cc
+++ b/gcc/c-family/c-opts.cc
@@ -370,7 +370,7 @@ c_common_handle_option (size_t scode, const char *arg, 
HOST_WIDE_INT value,
       if (!strcmp (arg, "p1689r5"))
        cpp_opts->deps.fdeps_format = FDEPS_FMT_P1689R5;
       else
-       error ("%<-fdeps-format=%> unknown format %<%s%>", arg);
+       error ("%<-fdeps-format=%> unknown format %q", arg);
       break;
 
     case OPT_fdeps_file_:
-- 
2.44.0