[libiberty]: Adjust style in pex-unix.c(to_ptr32)

[Tristan Gingold]

Hi,

I am committing this patch (as obvious) to adjust the style of the VMS specific 
function to_ptr32.

Tested by building for ia64-hp-openvms.

Tristan.

libiberty/
2012-04-04  Tristan Gingold  <ging...@adacore.com>

        * pex-unix.c (to_ptr32): Fix style.

Index: pex-unix.c
===================================================================
--- pex-unix.c  (revision 186130)
+++ pex-unix.c  (working copy)
@@ -85,13 +85,15 @@
   int argc;
   __char_ptr_char_ptr32 short_argv;
 
-  for (argc=0; ptr64[argc]; argc++);
+  /* Count number of arguments.  */
+  for (argc = 0; ptr64[argc] != NULL; argc++)
+    ;
 
   /* Reallocate argv with 32 bit pointers.  */
   short_argv = (__char_ptr_char_ptr32) decc$malloc
     (sizeof (__char_ptr32) * (argc + 1));
 
-  for (argc=0; ptr64[argc]; argc++)
+  for (argc = 0; ptr64[argc] != NULL; argc++)
     short_argv[argc] = (__char_ptr32) decc$strdup (ptr64[argc]);
 
   short_argv[argc] = (__char_ptr32) 0;