Clean up linux test decorators and add links to known bugs

- s/skipOnLinux/skipIfLinux/ to match style of every other decorator
- linkify bugizilla/PR numbers in comments

No intended change in functionality.

llvm-svn: 181913

lldb/test/functionalities/command_script/TestCommandScript.py

@@ -18,7 +18,7 @@ class CmdPythonTestCase(TestBase):
         self.pycmd_tests ()
 
     @dwarf_test
-    @skipOnLinux # causes buildbot failures, skip until we can investigate it
+    @skipIfLinux # causes buildbot failures, skip until we can investigate it
     def test_with_dwarf (self):
         self.buildDwarf ()
         self.pycmd_tests ()