patch 9.2.0583: completion: indent not ignored for fuzzy line completion

Problem:  Indent is not stripped in whole-line completion (CTRL-X
          CTRL-L).
Solution: Skip the matched line's indent for whole-line matches in
          search_for_fuzzy_match (glepnir).

closes: #20405

Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

src/fuzzy.c

@@ -865,11 +865,15 @@ search_for_fuzzy_match(
 		}
 		else
 		{
-		    if (fuzzy_match_str(*ptr, pattern) != FUZZY_SCORE_NONE)
+		    char_u *line = *ptr;
+		    char_u *p = skipwhite(line);
+		    if (fuzzy_match_str(p, pattern) != FUZZY_SCORE_NONE)
 		    {
 			found_new_match = TRUE;
 			*pos = current_pos;
-			*len = (int)ml_get_buf_len(buf, current_pos.lnum);
+			*ptr = p;
+			*len = (int)ml_get_buf_len(buf, current_pos.lnum) -
+								(int)(p - line);
 			break;
 		    }
 		}

src/testdir/test_ins_complete.vim

@@ -3696,10 +3696,16 @@ func Test_complete_opt_fuzzy()
   call feedkeys("Goa\<C-P>\<C-Y>\<Esc>", 'tx')
   call assert_equal('aaaa', getline('.'))
 
+  %d
+  set autoindent
+  set completeopt=menuone,fuzzy
+  call feedkeys("A\<TAB>hello world\<CR>word is on fire\<CR>w\<C-X>\<C-L>\<C-Y>", 'tx')
+  call assert_equal("\thello world", getline('.'))
+
   " clean up
   set omnifunc=
   bw!
-  set complete& completeopt&
+  set complete& completeopt& autoindent&
   autocmd! AAAAA_Group
   augroup! AAAAA_Group
   delfunc OnPumChange

src/version.c

@@ -729,6 +729,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    583,
 /**/
     582,
 /**/