idiff: update the usage message hint to advertise the directory feature

Let users know that the 2nd argument to "idiff" can be either an image filename or a directory. Related-to: AcademySoftwareFoundation#4009 Helped-by: @CheeksTheGeek Signed-off-by: David Aguilar <[email protected]>
davvid · Oct 12, 2023 · 5e2a795 · 5e2a795
1 parent a755a37
commit 5e2a795
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/idiff/idiff.cpp b/src/idiff/idiff.cpp
@@ -43,7 +43,7 @@ getargs(int argc, char* argv[])
     ArgParse ap;
     ap.intro("idiff -- compare two images\n"
              OIIO_INTRO_STRING)
-      .usage("idiff [options] image1 image2")
+      .usage("idiff [options] <image1> <image2 | directory>")
       .add_version(OIIO_VERSION_STRING)
       .print_defaults(true);