+The logical pathname host named by @code{"SYS"} exists in SBCL. Its
+@code{logical-pathname-translations} may be set by the site or the user
+applicable to point to the locations of the system's sources; in
+particular, the core system's source files match the logical pathname
+@code{"SYS:SRC;**;*.*.*"}, and the contributed modules' source files
+match @code{"SYS:CONTRIB;**;*.*.*"}.
+