nk: fix nk_textedit for non-single line edits.

9 jobs for master in 10 minutes and 32 seconds (queued for 1 minute and 59 seconds)
Status Job ID Name Coverage
  Build
passed #37020856
arm-linux-gnueabihf

00:01:46

passed #37020855
i686-linux-gnu

00:01:45

passed #37020858
i686-w64-mingw32

00:02:56

passed #37020859
universal-apple-darwin

00:02:36

passed #37020854
x86_64-linux-gnu

00:03:31

passed #37020857
x86_64-w64-mingw32

00:02:56

 
  Deploy
passed #37020860
pack

00:00:45

passed #37020861
pages

00:01:26

passed pages:deploy

00:00:01