Ensure window 0 has at least one line.
authorTimo Korvola <tkorvola@iki.fi>
Mon, 19 Feb 2018 23:08:50 +0000 (01:08 +0200)
committerTimo Korvola <tkorvola@iki.fi>
Mon, 19 Feb 2018 23:08:59 +0000 (01:08 +0200)
commit1c6f33cb8cf8abb2c3848a4421adaad5718d2e5f
treeac5405358f65c4716c0c0d3740d7702623737cdf
parent894aa5212b1011706a4f284d9baf5cb676dd3df3
Ensure window 0 has at least one line.

No other window heights are adjusted, so they may be out of bounds
and overlap with window 0.
src/common/screen.c