Added man page and changed usage message.

dwl-bar.1

@@ -0,0 +1,26 @@
+.TH dwl-bar 1 dwl-bar\-VERSION
+.SH NAME
+dwl-bar \- dwm-like bar for dwl
+.SH SYNOPSIS
+.B dwl-bar
+.RB [\-v]
+.SH DESCRIPTION
+dwl-bar is a status bar for dwl.
+.SH OPTIONS
+.B \-h
+prints help message and exits.
+.B \-v
+prints version and exits.
+.SH USAGE
+.SS Status
+.TP
+.B $XDG_RUNTIME_DIR/dwl-bar-x
+can be written into with the prefix 'status' to change the bar's status.
+.SS Mouse Commands
+.TP
+.B Middle Button
+Click the middle mouse button on the status label to open a terminal.
+.SH CUSTOMIZATION
+dwl-bar is customized through config.def.h and (re)compiling.
+.SH SEE ALSO
+.BR dwl (1)

src/main.c

@@ -815,13 +815,13 @@ int main(int argc, char *argv[]) {
   while ((opt = getopt(argc, argv, "vh")) != -1) {
     switch (opt) {
     case 'h':
-      printf("Usage: [-h] [-v]\n");
+      printf("Usage: %s [-h] [-v]\n", argv[0]);
       printf("  -h: show this\n");
       printf("  -v: get version\n");
       exit(0);
 
     case 'v':
-      printf("A Version");
+      printf("dwl %f", VERSION);
       exit(0);
     }
   }