Set handle->logstream to null after fclose()

We correctly closed the logfile stream when recalling set_logfile, but did
not NULL out the dead pointer once we did this. Fix the problem which was
the cause of FS#10056.

Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/libalpm/handle.c b/lib/libalpm/handle.c
index aaadd86d..36822285 100644
--- a/lib/libalpm/handle.c
+++ b/lib/libalpm/handle.c
@@ -427,6 +427,7 @@ int SYMEXPORT alpm_option_set_logfile(const char *logfile)
 	}
 	if(handle->logstream) {
 		fclose(handle->logstream);
+		handle->logstream = NULL;
 	}
 	_alpm_log(PM_LOG_DEBUG, "option 'logfile' = %s\n", handle->logfile);
 	return(0);