Allow the rest of the old tests to pass with nocp.

test40.in, test60.in, test_breakindent.in, test_listlbr.in, test_listlbr_utf8.in:
    To avoid <tab> triggering wildmode, set wildchar to 'cp' default.

test_breakindent.ok:
    Modify expectations to avoid cpoptions+=n

src/nvim/testdir/dotest.in

@@ -1,3 +1,3 @@
-:set nocp
+:set nocp nomore
 :map dotest /^STARTTEST
 j:set ff=unix cpo-=A

src/nvim/testdir/test40.in

@@ -2,6 +2,7 @@ Test for "*Cmd" autocommands
 
 STARTTEST
 :so small.vim
+:set wildchar=^E
 :/^start/,$w! Xxx		" write lines below to Xxx
 :au BufReadCmd XtestA 0r Xxx|$del
 :e XtestA			" will read text of Xxd instead

src/nvim/testdir/test60.in

@@ -2,6 +2,7 @@ Tests for the exists() and has() functions.  vim: set ft=vim ts=8 sw=2 :
 
 STARTTEST
 :so small.vim
+:set wildchar=^E
 :function! RunTest(str, result)
     if exists(a:str) == a:result
 	echo "OK"

src/nvim/testdir/test_breakindent.in

@@ -3,6 +3,7 @@ Test for breakindent
 STARTTEST
 :so small.vim
 :if !exists("+breakindent") | e! test.ok | w! test.out | qa! | endif
+:set wildchar=^E
 :10new|:vsp|:vert resize 20
 :put =\"\tabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP\"
 :set ts=4 sw=4 sts=4 breakindent

src/nvim/testdir/test_breakindent.ok

@@ -33,13 +33,13 @@ Test 4: Simple breakindent + min width: 18
 
  Test 7: breakindent + shift by +1 + nu + sbr=? briopt:sbr
   2     ab
-?        m
+    ?    m
-?        x
+    ?    x
 
  Test 8: breakindent + shift:1 + nu + sbr=# list briopt:sbr
   2 ^Iabcd
-#      opq
+    #  opq
-#      BCD
+    #  BCD
 
  Test 9: breakindent + shift by +1 + 'nu' + sbr=# list
   2 ^Iabcd

src/nvim/testdir/test_listlbr.in

@@ -3,6 +3,7 @@ Test for linebreak and list option (non-utf8)
 STARTTEST
 :so small.vim
 :if !exists("+linebreak") | e! test.ok | w! test.out | qa! | endif
+:set wildchar=^E
 :10new|:vsp|:vert resize 20
 :put =\"\tabcdef hijklmn\tpqrstuvwxyz_1060ABCDEFGHIJKLMNOP \"
 :norm! zt

src/nvim/testdir/test_listlbr_utf8.in

@@ -3,6 +3,7 @@ Test for linebreak and list option in utf-8 mode
 STARTTEST
 :so small.vim
 :if !exists("+linebreak") | e! test.ok | w! test.out | qa! | endif
+:set wildchar=^E
 :so mbyte.vim
 :if &enc !=? 'utf-8'|:e! test.ok|:w! test.out|qa!|endif
 :10new|:vsp|:vert resize 20