New review comment by sgn on void-packages repository

https://github.com/void-linux/void-packages/pull/23646#discussion_r458753760

Comment:
I'll apply this on top of your change:
```diff
diff --git a/srcpkgs/NetworkManager-l2tp/template b/srcpkgs/NetworkManager-l2tp/template
index 16bd590a97..5fc1665715 100644
--- a/srcpkgs/NetworkManager-l2tp/template
+++ b/srcpkgs/NetworkManager-l2tp/template
@@ -18,11 +18,7 @@ checksum=1d80986dc88951e298446833d314bab7af0a933e736960d6b3b025e6b7faca94
 # Automatically determine the pppd plugin dir location, but will need to
 # revbump this package whenever version of ppp package is updated.
 do_configure() {
-	if [ "$CROSS_BUILD" ]; then
-		PPP_VERSION=$(sed -n 's/^\#define\s*VERSION\s*"\([^\s]*\)"$/\1/p' /usr/${XBPS_CROSS_TRIPLET}/usr/include/pppd/patchlevel.h)
-	else
-		PPP_VERSION=$(sed -n 's/^\#define\s*VERSION\s*"\([^\s]*\)"$/\1/p' /usr/include/pppd/patchlevel.h)
-	fi
+	PPP_VERSION=$(awk '/VERSION/{print $3}' ${XBPS_CROSS_BASE}/usr/include/pppd/patchlevel.h)
 
 	./configure ${configure_args} --with-pppd-plugin-dir=/usr/lib/pppd/${PPP_VERSION}
 }
```
Thought?