+(insert string to top of line)

    = + command
        .insert any string at the cursor position placed on any line.
        .it is not inserted to the line with length is shorter than
         cursor position.
        .n,b,s parameter is not supported,it is treated as part of string.

        .ex) comment out the shell script.

            0019000|#   case ${DVWORDS[0]} in
            ++#_   |    case $DIST         in
            0021000|#     Red*)    DID=rh${DVWORDS[4]}  ;;     #Red Hat
            0022000|      Red*)    DID=rh$VER           ;;     #Red Hat
            0023000|#     Turbo*)  DID=tb${DVWORDS[2]}  ;;     #TurboLinux release 6.0 Work
            0024000|      Turbo*)  DID=tb$VER           ;;     #TurboLinux release 6.0 Work
            0025000|      *)      echo "xegetdv:No distribution ID found from /etc/issue (
            0026000|              sleep 2
            0027000|              DID=rh9
            ++     |    esac
            +#;    |fi
        ===>
            0020000*#_    case $DIST         in
            0021000*#_#     Red*)    DID=rh${DVWORDS[4]}  ;;     #Red Hat
            0022000*#_      Red*)    DID=rh$VER           ;;     #Red Hat
            0023000*#_#     Turbo*)  DID=tb${DVWORDS[2]}  ;;     #TurboLinux release 6.0 WorkStation (Shiga)
            0024000*#_      Turbo*)  DID=tb$VER           ;;     #TurboLinux release 6.0 WorkStation (Shiga)
            0025000*#_      *)      echo "xegetdv:No distribution ID found from /etc/issue ( " $DVER " ),assumed \"rh9\"."
            0026000*#_              sleep 2
            0027000*#_              DID=rh9
            0028000*#_    esac
            0029000*#;fi