Revise shell script maven-javadoc-generate.sh to
drop unnecessary -l for login shell;
restore shell -x behavior to maven command for debug details in log;
add info output when creating tarball in verify path.
Change-Id: Ifdd5693dee73ffd7a75a97f3a572f3a31aafd7c4 Signed-off-by: Lott, Christopher (cl778h) <cl778h@att.com>
Issue-ID: RELENG-1872