Report errors that occur when closing files

Otherwise we miss write errors that occur when flushing the cache.

1 files changed, 3 insertions, 1 deletions

diff --git a/cmdline.h b/cmdline.h
index a1dadc3..9a46f7f 100644
--- a/cmdline.h
+++ b/cmdline.h
@@ -117,7 +117,9 @@ int eval_cmdline(const struct cmdline *cmdline);
 
 /**
  * Free the parsed command line.
+ *
+ * @return 0 if successful, -1 on error.
  */
-void free_cmdline(struct cmdline *cmdline);
+int free_cmdline(struct cmdline *cmdline);
 
 #endif // CMDLINE_H