Two modifications:
1. The addition of 2013 to the copyright year range for every file;
2. The use of a single year range, instead of potentially multiple
year ranges, as approved by the FSF.
* gdb.base/maint.exp: Expect "." prefix.
* gdb.base/nodebug.exp: Expect "." Likewise.
* gdb.base/sepsymtab.exp: Expect "." Likewise.
* gdb.base/watchpoint-cond-gone.exp: Likewise.
* gdb.base/watchpoint.exp: Expect a software watch to be created for
POWER server processors.