indent cpp directives to reflect nesting
-rw-r--r-- 11339 ABOUT-NLS
-rw-r--r-- 17989 COPYING
-rw-r--r-- 7831 INSTALL
-rw-r--r-- 1284 THANKS
drwxr-xr-x - doc
drwxr-xr-x - lib
drwxr-xr-x - m4
drwxr-xr-x - old
drwxr-xr-x - po
drwxr-xr-x - src
drwxr-xr-x - tests