Keep our .orig files, also make one of the filenames a little less long

Makefile

@@ -24,13 +24,14 @@ install.radare.projects:
 	./$< $@
 	sha1sum -c $@.sha1
 
+# keep intermediate files
+.PRECIOUS: %.img.orig
+
 # Generate a working file that we can patch
 %.img: %.img.orig
+	sha1sum -c $<.sha1
 	cp $< $@
 
-# keep intermediate files
-.SECONDARY:
-
 mec-tools/Makefile:
 	git submodule update --init --remote
 

x230.G2HT35WW.extract

@@ -12,7 +12,7 @@ if [ -z "$OUTPUT" ]; then
     exit 1
 fi
 
-OUT1="${OUTPUT}.encrypted"
+OUT1="${OUTPUT}.enc"
 
 dd if=g2uj23us.iso bs=$[0x01076600] skip=1 | dd bs=196608 count=1 of="$OUT1"