File fix-use-after-free.patch of Package indent.28591

commit c2b74c05435c59225badaeeb2a5e40c20284528a
Author: Dan Collins <dcollinsn@gmail.com>
Date:   Sun Aug 9 20:26:37 2020 +0200

    Fix use after free error
    
    Need_chars was called, and it is possible for xrealloc to return a new
    pointer, leaving buf_ptr possibly a dangling reference.
    
    Bug: #58924

diff --git a/src/handletoken.c b/src/handletoken.c
index b17dee1..e45495a 100644
--- a/src/handletoken.c
+++ b/src/handletoken.c
@@ -1972,8 +1972,8 @@ static void handle_token_preesc(
 
             bp_save = buf_ptr;
             be_save = buf_end;
-            buf_ptr = save_com.ptr;
             need_chars (&save_com, 1);
+            buf_ptr = save_com.ptr;
             buf_end = save_com.end;
             save_com.end = save_com.ptr;        /* make save_com empty */
         }