main/mandoc: fix apropos trigger

Let the trigger wait for the lock instead of exit with error, so we make
sure that makewatis includes everything.

Fixes commit 72363f47 (main/mandoc: fix trigger)

main/mandoc/APKBUILD

@@ -3,7 +3,7 @@
 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=mandoc
 pkgver=1.14.6
-pkgrel=11
+pkgrel=12
 pkgdesc="mandoc (formerly mdocml) UNIX manpage compiler toolset"
 url="https://mandoc.bsd.lv/"
 arch="all"

main/mandoc/mandoc-apropos.trigger

 #!/bin/sh
 
-nohup nice sh -c "( flock -n 9 && /usr/sbin/makewhatis -T utf8 ) 9>/tmp/makewhatis.lock" \
+nohup nice sh -c "( flock 9 && /usr/sbin/makewhatis -T utf8 ) 9>/tmp/makewhatis.lock" \
 	>/dev/null 2>&1 &