Consistify a few remaining redundant or odd expressions involving boolean
constants, such as "foo == FALSE" to "!foo" and "number ? FALSE : TRUE" to
"number != 0".  A follow-up to r1431017 and r1431040.

* subversion/include/svn_types.h
  (svn_depth_from_word): Simplify "boolean ? TRUE : FALSE".

* subversion/libsvn_subr/named_atomic.c
  (svn_named_atomic__is_supported): Same.

* subversion/libsvn_subr/stream.c
  (svn_stream_supports_mark): Similar.

* subversion/libsvn_client/copy.c
  (try_copy): Simplify "x == TRUE" and similar.

* subversion/tests/libsvn_subr/mergeinfo-test.c
  (test_rangelist_to_string, test_mergeinfo_to_string): Same.

* subversion/libsvn_ra_serf/commit.c
  (open_root): Change "pointer ? TRUE : FALSE" to "pointer != NULL".

* subversion/svnadmin/svnadmin.c
  (subcommand_load): Same.

* subversion/mod_dav_svn/reports/replay.c
  (dav_svn__replay_report): Change "number ? TRUE : FALSE" to "number != 0".


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1431072 13f79535-47bb-0310-9956-ffa450edef68