patch 8.1.1970: search stat space wrong, no test for 8.1.1965

Problem:    Search stat space wrong, no test for 8.1.1965.
Solution:   Fix check for cmd_silent.  Add a test. (Christian Brabandt)

Author: brammool

src/search.c

@@ -1391,7 +1391,7 @@ do_search(
 		// search stat.  Use all the space available, so that the
 		// search state is right aligned.  If there is not enough space
 		// msg_strtrunc() will shorten in the middle.
-		if (msg_scrolled != 0 || cmd_silent)
+		if (msg_scrolled != 0 && !cmd_silent)
 		    // Use all the columns.
 		    len = (int)(Rows - msg_row) * Columns - 1;
 		else

src/testdir/test_search_stat.vim

@@ -160,7 +160,28 @@ func! Test_search_stat()
   let stat = '\[1/2\]'
   call assert_notmatch(pat .. stat, g:a)
 
-  " close the window
+  " normal, n comes from a silent mapping
+  " First test a normal mapping, then a silent mapping
+  call cursor(1,1)
+  nnoremap n n
+  let @/ = 'find this'
+  let pat = '/find this\s\+'
+  let g:a = execute(':unsilent :norm n')
+  let g:b = split(g:a, "\n")[-1]
+  let stat = '\[1/2\]'
+  call assert_match(pat .. stat, g:b)
+  nnoremap <silent> n n
+  call cursor(1,1)
+  let g:a = execute(':unsilent :norm n')
+  let g:b = split(g:a, "\n")[-1]
+  let stat = '\[1/2\]'
+  call assert_notmatch(pat .. stat, g:b)
+  call assert_match(stat, g:b)
+  unmap n
+
+  " Clean up
   set shortmess+=S
+
+  " close the window
   bwipe!
 endfunc

src/version.c

@@ -761,6 +761,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1970,
 /**/
     1969,
 /**/