Add long "help" and "version" options to serdi

Although serdi still "officially" has a BSD-style interface, meson uses
--version to find the version of executables.  So, support that, and also add
--help, since users will often try that for unknown commands.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/serdi.c b/src/serdi.c
index f6a329bb..deeac384 100644
--- a/src/serdi.c
+++ b/src/serdi.c
@@ -201,6 +201,14 @@ main(int argc, char** argv)
       break;
     }
 
+    if (!strcmp(argv[a], "--help")) {
+        return print_usage(prog, false);
+    }
+
+    if (!strcmp(argv[a], "--version")) {
+        return print_version();
+    }
+
     for (int o = 1; argv[a][o]; ++o) {
       const char opt = argv[a][o];