svn path=/main/trunk/; revision=6511
Do not delete the ${T} directory after the merge process.
.TP
.B keepwork
-Do not delete the ${WORKDIR} directory after the merge process.
+Do not delete the ${WORKDIR} directory after the merge process. This also
+disables most the clean phase that is run prior to each build. This causes it
+to interfere with normal emerge operation and therefore it should not be left
+enabled for more than a short period of time.
.TP
.B metadata\-transfer
Automatically perform a metadata transfer when `emerge \-\-sync` is run.