patch 9.1.1025: wrong return type of blob2str()

Problem:  wrong return type of blob2str()
Solution: update return to list of string
          (Yegappan Lakshmanan)

closes: #16461

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/evalfunc.c b/src/evalfunc.c
index 2b630ca..8886088 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -1847,7 +1847,7 @@
     {"blob2list",	1, 1, FEARG_1,	    arg1_blob,
 			ret_list_number,    f_blob2list},
     {"blob2str",	1, 2, FEARG_1,	    arg2_blob_dict,
-			ret_string,	    f_blob2str},
+			ret_list_string,    f_blob2str},
     {"browse",		4, 4, 0,	    arg4_browse,
 			ret_string,	    f_browse},
     {"browsedir",	2, 2, 0,	    arg2_string,
diff --git a/src/testdir/test_vim9_builtin.vim b/src/testdir/test_vim9_builtin.vim
index c82608b..cfaf0ac 100644
--- a/src/testdir/test_vim9_builtin.vim
+++ b/src/testdir/test_vim9_builtin.vim
@@ -357,6 +357,16 @@
   v9.CheckSourceDefAndScriptFailure(['blob2list(10)'], ['E1013: Argument 1: type mismatch, expected blob but got number', 'E1238: Blob required for argument 1'])
 enddef
 
+def Test_blob2str()
+  0z6162->blob2str()->assert_equal(["ab"])
+  blob2str(0z)->assert_equal([])
+
+  var l: list<string> = blob2str(0zC2ABC2BB)
+  assert_equal(["«»"], l)
+
+  v9.CheckSourceDefAndScriptFailure(['blob2str("ab")'], ['E1013: Argument 1: type mismatch, expected blob but got string', 'E1238: Blob required for argument 1'])
+enddef
+
 def Test_browse()
   CheckFeature browse
 
@@ -4325,6 +4335,13 @@
   assert_equal('', state('a'))
 enddef
 
+def Test_str2blob()
+  ["ab"]->str2blob()->assert_equal(0z6162)
+  str2blob([""])->assert_equal(0z)
+
+  v9.CheckSourceDefAndScriptFailure(['str2blob("ab")'], ['E1013: Argument 1: type mismatch, expected list<string> but got string', 'E1211: List required for argument 1'])
+enddef
+
 def Test_str2float()
   str2float("1.00")->assert_equal(1.00)
   str2float("2e-2")->assert_equal(0.02)
diff --git a/src/version.c b/src/version.c
index b002210..93f94c1 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1025,
+/**/
     1024,
 /**/
     1023,