gh-39976: fix e_antic patch header
    
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URL: #39976
Reported by: Isuru Fernando
Reviewer(s): Dima Pasechnik

Author: Release Manager

build/pkgs/e_antic/patches/gmp-header.patch

@@ -1,5 +1,5 @@
---- libeantic/srcxx/renf_elem_class.cpp	2025-03-27 16:35:20.026216756 -0500
-+++ libeantic/srcxx/renf_elem_class.cpp	2025-03-27 16:35:07.743757663 -0500
+--- a/libeantic/srcxx/renf_elem_class.cpp	2025-03-27 16:35:20.026216756 -0500
++++ b/libeantic/srcxx/renf_elem_class.cpp	2025-03-27 16:35:07.743757663 -0500
 @@ -12,6 +12,7 @@
 
  #include <iostream>