TST: Skip SYSLOG log target test if '/dev/log' not present

Conflicts:
	testcases/servertestcase.py -- probably jumped over another commit in this cherry-pick which resulted in conflict

testcases/servertestcase.py

@@ -513,7 +513,12 @@ class TransmitterLogging(TransmitterBase):
 
 		self.setGetTest("logtarget", "STDOUT")
 		self.setGetTest("logtarget", "STDERR")
-		if sys.platform.lower().startswith('linux'):
+
+	def testLogTargetSYSLOG(self):
+		if not os.path.exists("/dev/log") and sys.version_info >= (2, 7):
+			raise unittest.SkipTest("'/dev/log' not present")
+		elif not os.path.exists("/dev/log"):
+			return
 		self.setGetTest("logtarget", "SYSLOG")
 
 	def testLogLevel(self):