* data/glr.c (yyglrReduce): Don't use C89 string concatenation.

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 2003-07-25  Paul Eggert  <eggert@twinsun.com>
 
+       * data/glr.c (yyglrReduce): Don't use C89 string concatenation,
+       for portability to K&R C (after ansi2knr, presumably).  See
+       <http://mail.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>
+       by Frank Heckenbach, though I have omitted the structure-initialization
+       part of his glr-knr.diff patch since I recall that the Portable
+       C Compiler didn't require that change.
+
        Let the user specify how to allocate and free memory.
        Derived from a suggestion by Frank Heckenbach in
        <http://mail.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>.