Print which option was in error along with usage message

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/dsimple.h b/dsimple.h
index 0ecd10f..41a1e1c 100644
--- a/dsimple.h
+++ b/dsimple.h
@@ -62,7 +62,7 @@ extern int screen;                           /* The current screen */
 
 void Setup_Display_And_Screen(int *, char **);
 void Close_Display(void);
-void usage(void) _X_NORETURN;
+void usage(const char *errmsg) _X_NORETURN;
 
 #define X_USAGE "[host:display]"              /* X arguments handled by
 						 Get_Display_Name */