returns positive or 0, and a valid bus path in the return
argument. On success, <function>sd_bus_path_decode()</function>
returns a positive value if the prefixed matched, or 0 if it
- didn't. If the prefix matched the external identifier is returned
+ did not. If the prefix matched the external identifier is returned
in the return parameter. If it did not match NULL is returned in
the return parameter. On failure, a negative errno-style error
number is returned by either function. The returned strings must