vim-patch:8.0.0293: some tests have a one or three second wait

Problem:    Some tests have a one or three second wait.
Solution:   Reset the 'showmode' option.  Use a test time of one to disable
            sleep after an error or warning message.

e5f2a075e3

src/nvim/testdir/runtest.vim

@@ -54,9 +54,6 @@ else
   set encoding=latin1
 endif
 
-" Avoid stopping at the "hit enter" prompt
-set nomore
-
 " Output all messages in English.
 lang mess C
 
@@ -84,6 +81,13 @@ endfunc
 func RunTheTest(test)
   echo 'Executing ' . a:test
 
+  " Avoid stopping at the "hit enter" prompt
+  set nomore
+
+  " Avoid a three second wait when a message is about to be overwritten by the
+  " mode message.
+  set noshowmode
+
   " Some tests wipe out buffers.  To be consistent, always wipe out all
   " buffers.
   %bwipe!