use the new coding style in scripts

there were stragglers left over from the last audit,
and these stragglers still exist even after all the
major re-factoring as of late

the new style is: bsd-like coding style and error
handling. verbose yet simple error handling. we use
an "err" function in a way reminiscent of most C
programs that you see in openbsd base (err.h)

this style is very clean, resulting in readable code

Signed-off-by: Leah Rowe <leah@libreboot.org>

resources/scripts/misc/versioncheck

@@ -17,7 +17,7 @@
 #
 
 [ "x${DEBUG+set}" = 'xset' ] && set -v
-set -u -e
+set -u
 
 version="version-unknown"
 [ -f version ] && version="$(cat version)"