Test: Disable swapfile to avoid test lockups

vhda · vhda · commit 278551e3260b · 2017-10-21T01:14:51.000+01:00
Swap files could be left behind when a test is interrupted, making
following test runs stop due to Vim asking about recovery options.
diff --git a/test/test_vimrc b/test/test_vimrc
@@ -1,4 +1,5 @@
 set nocompatible
 set modeline
+set noswapfile
 filetype plugin indent on
 syntax enable
