[umount]: Fix default srcLog in umount.conf

Also fix the introductory comment, which also contained the old
location.

src/modules/umount/umount.conf

@@ -10,7 +10,7 @@
 #   destLog location in the target system to copy the log
 #
 # You can either use the default source path (which is
-# `/root/.cache/Calamares/Calamares/Calamares.log` ) to copy the regular log,
+# `/root/.cache/calamares/session.log` ) to copy the regular log,
 # or if you want to use the full output of `sudo calamares -d` you will need
 # to redirect standard output, for instance in a launcher script or
 # in the desktop file.
@@ -34,7 +34,7 @@
 
 ---
 # example when using the normal Calamares log:
-srcLog:      "/root/.cache/Calamares/Calamares/Calamares.log"
+srcLog:      "/root/.cache/calamares/session.log"
 destLog:     "/var/log/Calamares.log"
 
 # example when using a log created by `sudo calamares -d`: