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/ChangeLog:
* linespec.c (struct collect_minsyms) [list_mode]: New field.
(add_minsym): Ignore data symbols if not in list mode.
(search_minsyms_for_name): Set local.list_mode.
gdb/testsuite/ChangeLog:
* gdb.base/dmsym.c, gdb.base/dmsym_main.c, gdb.base/dmsym.exp:
New files.