fix: pingmessage.py warning

Author: dgarcia360

.github/workflows/docs-verify.yml

@@ -28,5 +28,5 @@ jobs:
         run: sudo apt-get update && sudo apt-get install -y doxygen
 
       - name: Build docs
-        run: make -C docs test
+        run: make -C docs test BUILDDIR="_build/$output_dir"
 

brping/pingmessage.py

@@ -390,8 +390,7 @@ def parse_byte(self, msg_byte):
         'msg_byte' is the byte to parse.
             If it completes a valid message, returns PingParser.NEW_MESSAGE.
             The decoded PingMessage will be available in the self.rx_msg attribute
-                until a new message is decoded.
-
+            until a new message is decoded.
         """
         # Apply the relevant parsing method for the current state.
         #  (offset by 1 because NEW_MESSAGE isn't processed - start at WAIT_START)