fix issue425: mention at end of "py.test -h" that --markers

and --fixtures work according to specified test path (or current dir)

CHANGELOG

@@ -8,6 +8,9 @@ UNRELEASED
 - fixed docs and code to use "pytest" instead of "py.test" everywhere.
   Thanks Jurko Gospodnetic for the complete PR.
 
+- fix issue425: mention at end of "py.test -h" that --markers
+  and --fixtures work according to specified test path (or current dir)
+
 2.5.1
 -----------------------------------
 

_pytest/helpconfig.py

@@ -84,6 +84,8 @@ def showhelp(config):
     #tw.sep("=")
     tw.line("to see available markers type: py.test --markers")
     tw.line("to see available fixtures type: py.test --fixtures")
+    tw.line("(shown according to specified file_or_dir or current dir "
+            "if not specified)")
     return
 
     tw.line("conftest.py options:")