benign change ...added space to end of line

configure.in

 dnl Process this file with autoconf to produce a configure script.
-dnl $PostgreSQL: pgsql/configure.in,v 1.354 2004/05/19 22:36:36 momjian Exp $
+dnl $PostgreSQL: pgsql/configure.in,v 1.355 2004/05/20 23:49:41 pgsql Exp $
 dnl
 dnl Developers, please strive to achieve this order:
 dnl
 dnl 0. Initialization and options processing
 dnl 1. Programs
 dnl 2. Libraries
-dnl 3. Header files
+dnl 3. Header files 
 dnl 4. Types
 dnl 5. Structures
 dnl 6. Compiler characteristics