Rebrand to flashprog and update URLs

Mostly automated `sed` work. As of now, URLs to the old wiki are broken
either way, so changing them shouldn't hurt. Other URLs (e.g. to mailing
list archives) were hopefully filtered correctly.

Change-Id: I9d43bfd0e675eff2fcbad05f304b9ce9f5006b08
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.sourcearcade.org/c/flashrom-stable/+/21
diff --git a/pony_spi.c b/pony_spi.c
index 9096201..2d423ef 100644
--- a/pony_spi.c
+++ b/pony_spi.c
@@ -138,7 +138,7 @@
 
 	if (!have_device) {
 		msg_perr("Error: No valid device specified.\n"
-			 "Use flashrom -p pony_spi:dev=/dev/device[,type=name]\n");
+			 "Use flashprog -p pony_spi:dev=/dev/device[,type=name]\n");
 		return 1;
 	}