mingw: use MSYS2 quoting even when spawning shell scripts

At the point where `mingw_spawn_fd()` is called, we already have a full
path to the script interpreter in that scenario, and we pass it in as
the executable to run, while the `argv` reflect what the script should
receive as command-line.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

diff --git a/compat/mingw.c b/compat/mingw.c
index 5dbaae981e40fa3ef91f54a29ce9a42aaedf68c9..32fc02e36053a5381962d2ef34c7e96a28ff1317 100644 (file)
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -1439,7 +1439,8 @@ static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **deltaen
        BOOL ret;
        HANDLE cons;
        const char *(*quote_arg)(const char *arg) =
-               is_msys2_sh(*argv) ? quote_arg_msys2 : quote_arg_msvc;
+               is_msys2_sh(cmd ? cmd : *argv) ?
+               quote_arg_msys2 : quote_arg_msvc;
 
        do_unset_environment_variables();