trim down the opening paragraph

Author: nedbat

Doc/library/glob.rst

@@ -18,9 +18,9 @@
    single: - (minus); in glob-style wildcards
    single: . (dot); in glob-style wildcards
 
-The :mod:`glob` module finds all the pathnames matching a specified pattern
-according to the rules used by the Unix shell, although results are returned in
-arbitrary order.  No tilde expansion is done, but ``*``, ``?``, and character
+The :mod:`!glob` module finds pathnames
+using pattern matching rules similar to the Unix shell.
+No tilde expansion is done, but ``*``, ``?``, and character
 ranges expressed with ``[]`` will be correctly matched.  This is done by using
 the :func:`os.scandir` and :func:`fnmatch.fnmatch` functions in concert, and
 not by actually invoking a subshell.
@@ -29,7 +29,7 @@ not by actually invoking a subshell.
    The pathnames are returned in no particular order.  If you need a specific
    order, sort the results.
 
-Note that files beginning with a dot (``.``) can only be matched by
+Files beginning with a dot (``.``) can only be matched by
 patterns that also start with a dot,
 unlike :func:`fnmatch.fnmatch` or :func:`pathlib.Path.glob`.
 (For tilde and shell variable expansion, use :func:`os.path.expanduser` and