+# Three different line formats are valid:
+# key [options] directory
+# key [options] directory files...
+# Where "options" are composed of:
+# -i prog Run "prog" on "cvs commit" from top-level of module.
+# -o prog Run "prog" on "cvs checkout" of module.
+# -e prog Run "prog" on "cvs export" of module.
+# -t prog Run "prog" on "cvs rtag" of module.
+# -u prog Run "prog" on "cvs update" of module.
+# -d dir Place module in directory "dir" instead of module name.
+# -l Top-level directory only -- do not recurse.
+# NOTE: If you change any of the "Run" options above, you'll have to
+# release and re-checkout any working directories of these modules.
+# And "directory" is a path to a directory relative to $CVSROOT.
+# The "-a" option specifies an alias. An alias is interpreted as if
+# everything on the right of the "-a" had been typed on the command line.
+# You can encode a module within a module by using the special '&'
+# character to interpose another module into the current module. This
+# can be useful for creating a module that consists of many directories
+# spread out over the entire source repository.