BUILD: cli: appease a null-deref warning in cli_gen_usage_msg()
The compiler sees the possibility of null-deref for which a path is
possible but which doesn't exist as we didn't pass a null args outside
of the help request. The test was introduced by the simplified test on
ishelp variable, so let's add it to shut the warning.
diff --git a/src/cli.c b/src/cli.c
index c2464b9..24144dd 100644
--- a/src/cli.c
+++ b/src/cli.c
@@ -143,7 +143,7 @@
chunk_reset(tmp);
if (ishelp) // this is the help message.
chunk_strcat(tmp, "The following commands are valid at this level:\n");
- else if (!length && (!*args || !**args)) // no match
+ else if (!length && (!args || !*args || !**args)) // no match
chunk_strcat(tmp, "Unknown command. Please enter one of the following commands only:\n");
else // partial match
chunk_strcat(tmp, "Unknown command, but maybe one of the following ones is a better match:\n");