wmifs: Add support for wmgeneral's -geometry command line option.

Also take the opportunity to correct the manpage; the -d option should be
-display.

wmifs/wmifs.1

@@ -33,9 +33,12 @@ Show summary of options.
 .B \-v
 Show version of the program.
 .TP
-.B \-d <display name>
+.B \-display <display name>
 Use an alternate X display.
 .TP
+.B \-geometry +x+y
+Set window position.
+.TP
 .B \-i <interface name>
 Interface that should come up initially when executing wmifs.  If you
 use "auto" as interface name, the first active ("up") interface will be

wmifs/wmifs.c

@@ -319,6 +319,12 @@ int main(int argc, char *argv[])
 					exit(1);
 				}
 				break;
+			case 'g':
+				if (strcmp(arg+1, "geometry")) {
+					usage();
+					exit(1);
+				}
+				break;
 			case 'i':
 				active_interface = argv[i+1];
 				i++;
@@ -1003,6 +1009,7 @@ void usage(void)
 	fprintf(stderr, "usage:\n");
 	fprintf(stderr, "\t-c <color>\t\tset color\n");
 	fprintf(stderr, "\t-display <display name>\tset display\n");
+	fprintf(stderr, "\t-geometry +x+y\t\tset window position\n");
 	fprintf(stderr, "\t-h\t\t\tthis help screen\n");
 	fprintf(stderr, "\t-i <interface name>\tdefault (as it appears in /proc/net/route)\n");
 	fprintf(stderr, "\t-I <interval>\t\tsampling interval, in seconds (default: 0.05)\n");