Make sure err_info is always set, and print it iff it's non-null.

Change-Id: Ib5c600c491a3d8adcfa91c00fa9445283610545b
Reviewed-on: https://code.wireshark.org/review/5830
Reviewed-by: Guy Harris <guy@alum.mit.edu>

1 files changed, 1 insertions, 5 deletions

diff --git a/captype.c b/captype.c
index e06236130e..0864ba6222 100644
--- a/captype.c
+++ b/captype.c
@@ -254,13 +254,9 @@ main(int argc, char *argv[])
       else {
         fprintf(stderr, "captype: Can't open %s: %s\n", argv[i],
                 wtap_strerror(err));
-        switch (err) {
-
-        case WTAP_ERR_UNSUPPORTED:
-        case WTAP_ERR_BAD_FILE:
+        if (err_info != NULL) {
           fprintf(stderr, "(%s)\n", err_info);
           g_free(err_info);
-          break;
         }
         overall_error_status = 1; /* remember that an error has occurred */
       }