[ERROR] Set default exvwarning2 arg0 for errors during early initialisation

As it stands if we get an error before procargs gets called by main()
we'll try to print out a null pointer.  This patch avoids this by
printing out "sh" instead.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/error.c b/src/error.c
index 338243d..7f165c1 100644
--- a/src/error.c
+++ b/src/error.c
@@ -122,7 +122,7 @@ exvwarning2(const char *msg, va_list ap)
 	const char *fmt;
 
 	errs = out2;
-	name = arg0;
+	name = arg0 ?: "sh";
 	fmt = "%s: ";
 	if (commandname) {
 		name = commandname;