Add a canonical path to the documentation

Author: jan-cerny

docs/manual/manual.adoc

@@ -1619,7 +1619,7 @@ not considered local by the scanner:
 * `SOURCE_DATE_EPOCH` - Timestamp in seconds since epoch. This timestamp will be used instead of the current time to populate `timestamp` attributes in SCAP source data streams created by `oscap ds sds-compose` sub-module. This is used for reproducible builds of data streams.
 * `OSCAP_PROBE_MEMORY_USAGE_RATIO` - maximum memory usage ratio (used/total) for OpenSCAP probes, default: 0.1
 * `OSCAP_PROBE_MAX_COLLECTED_ITEMS` - maximal count of collected items by OpenSCAP probe for a single OVAL object evaluation
-* `OSCAP_PROBE_IGNORE_PATHS` - Skip given paths during evaluation. If multiple paths should be skipped they need to be separated by a colon. The paths should be absolute.
+* `OSCAP_PROBE_IGNORE_PATHS` - Skip given paths during evaluation. If multiple paths should be skipped they need to be separated by a colon. The paths should be absolute canonical paths.
 
 Also, OpenSCAP uses `libcurl` library which also can be configured using environment variables. See https://curl.se/libcurl/c/libcurl-env.html[the list of libcurl environment variables].