Embellish wrong number of arguments error message

git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@224 9d0c8265-081b-0410-96cb-a4ca84ce46f8

1 files changed, 4 insertions, 2 deletions

diff --git a/editor/pamcut.c b/editor/pamcut.c
index d5de45fb..c6fc0cc1 100644
--- a/editor/pamcut.c
+++ b/editor/pamcut.c
@@ -94,8 +94,10 @@ parseCommandLine(int argc, char ** const argv,
         pm_error("-height may not be negative.");
 
     if ((argc-1) != 0 && (argc-1) != 1 && (argc-1) != 4 && (argc-1) != 5)
-        pm_error("Wrong number of arguments.  "
-                 "Must be 0, 1, 4, or 5 arguments.");
+        pm_error("Wrong number of arguments: %u.  The only argument in "
+                 "the preferred syntax is an optional input file name.  "
+                 "In older syntax, there are also forms with 4 and 5 "
+                 "arguments.", argc-1);
 
     switch (argc-1) {
     case 0: