patch 8.1.0196: terminal debugger error with .gdbinit file

Problem:    Terminal debugger error with .gdbinit file.
Solution:   Check two lines for the "new ui" response. (hint from Hirohito
            Higashi)

runtime/pack/dist/opt/termdebug/plugin/termdebug.vim

@@ -200,7 +200,8 @@ func s:StartDebug_term(dict)
    let response = ''
    for lnum in range(1,200)
      if term_getline(s:gdbbuf, lnum) =~ 'new-ui mi '
	let response = term_getline(s:gdbbuf, lnum + 1)
	" response can be in the same line or the next line
	let response = term_getline(s:gdbbuf, lnum) . term_getline(s:gdbbuf, lnum + 1)
	if response =~ 'Undefined command'
	  echoerr 'Sorry, your gdb is too old, gdb 7.12 is required'
	  exe 'bwipe! ' . s:ptybuf

src/version.c

@@ -789,6 +789,8 @@ static char *(features[]) =

static int included_patches[] =
{   /* Add new patch number below this line */
/**/
    196,
/**/
    195,
/**/