Script does what is expected and tries to do it as
smartly as possible.
+ remove occurrences of two blank comment lines
next to each other after Id string line removed.
+ remove entire comment blocks which only exited to
contain CVS Ids
+ If the processing left a blank line at the top of
a file, it was removed.
* aclocal/rtems-debug.m4: Remove.
* aclocal/enable-rtems-debug.m4: New (Split out from rtems-debug.m4).
* aclocal/check-rtems-debug.m4: New (Split out from rtems-debug.m4).
