Improve comment.

configure

@@ -13698,7 +13698,7 @@ fi
 done
-# Do test here with thread flags
+# Do test here with the proper thread flags
 echo "$as_me:$LINENO: checking whether getpwuid_r takes a fifth argument" >&5
 echo $ECHO_N "checking whether getpwuid_r takes a fifth argument... $ECHO_C" >&6
 if test "${pgac_func_getpwuid_r_5arg+set}" = set; then

configure.in

 dnl Process this file with autoconf to produce a configure script.
-dnl $PostgreSQL: pgsql/configure.in,v 1.363 2004/06/16 02:58:28 momjian Exp $
+dnl $PostgreSQL: pgsql/configure.in,v 1.364 2004/06/16 03:01:32 momjian Exp $
 dnl
 dnl Developers, please strive to achieve this order:
 dnl
@@ -990,7 +990,7 @@ CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
 LIBS="$LIBS $PTHREAD_LIBS"
 AC_CHECK_FUNCS([strerror_r getpwuid_r gethostbyname_r])
 
-# Do test here with thread flags
+# Do test here with the proper thread flags
 PGAC_FUNC_GETPWUID_R_5ARG
 PGAC_FUNC_STRERROR_R_INT