patch 9.2.0525: spell: memory leak in spell_read_dic()

Problem:  spell: memory leak in spell_read_dic() (after 9.2.0524).
Solution: Free "pc" before breaking out of the loop (zeertzjq).

closes: #20309

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

src/spellfile.c

@@ -3704,6 +3704,7 @@ spell_read_dic(spellinfo_T *spin, char_u *fname, afffile_T *affile)
 								      == FAIL)
 		{
 		    retval = FAIL;
+		    vim_free(pc);
 		    break;
 		}
 		pfxlen = totlen;
@@ -3717,6 +3718,7 @@ spell_read_dic(spellinfo_T *spin, char_u *fname, afffile_T *affile)
 								      == FAIL)
 		{
 		    retval = FAIL;
+		    vim_free(pc);
 		    break;
 		}
 	    }

src/version.c

@@ -729,6 +729,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    525,
 /**/
     524,
 /**/