cli: Fix invalid option message.

[apitrace] / cli / cli_dump_images.cpp

diff --git a/cli/cli_dump_images.cpp b/cli/cli_dump_images.cpp
index 86cf75c3e5da122a5fc4f7f0920ec13dfb7427a9..bf3dc566768f012b82b68a721d0a9477679ec617 100644 (file)
--- a/cli/cli_dump_images.cpp
+++ b/cli/cli_dump_images.cpp
@@ -100,7 +100,7 @@ command(int argc, char *argv[])
             output = optarg;
             break;
         default:
-            std::cerr << "error: unexpected option `" << opt << "`\n";
+            std::cerr << "error: unexpected option `" << (char)opt << "`\n";
             usage();
             return 1;
         }