Add the checksum of the built FL2 to the details shown

Makefile

@@ -235,7 +235,7 @@ endef
 # $1 = FL2 filename
 # $2 = ISO image
 define rule_iso
-    $(2): $(1) $(2).bat ; ./slice.insert $(1).slice $(1) $(2) && mcopy -m -o -i $(2)@@$(FAT_OFFSET) $(2).bat ::AUTOEXEC.BAT
+    $(2): $(1) $(2).bat ; ./slice.insert $(1).slice $(1) $(2) && sed -i "s/__BUILT/`sha1sum $(1)`/" $(2).bat && mcopy -m -o -i $(2)@@$(FAT_OFFSET) $(2).bat ::AUTOEXEC.BAT
 endef
 
 #

autoexec.bat.template

@@ -5,7 +5,6 @@ cls
 echo.
 echo.
 echo This will flash your firmware to support a classic 7-row keyboard
-echo Buildinfo: __BUILDINFO
 echo.
 echo.
 echo WARNING: Incorrectly flashing your firmware can damage your laptop.
@@ -16,6 +15,9 @@ echo This disc will flash the file __DIR\__FL2
 echo.
 echo This disk is prepared for __DESC
 echo.
+echo Buildinfo: __BUILDINFO
+echo Built: __BUILT
+echo.
 pause
 echo on
 dosflash /sd /ipf ec /file __DIR\__FL2