Additional Comments added

[geographika]

When using the "keep comments" feature, the following case will keep adding a new # PROJECTION comment on each change:

MAP
    PROJECTION
        "init=epsg:2157"
    END # PROJECTION
    LAYER
        TYPE LINE
    END
END # MAP

Output:

MAP
    PROJECTION
        "init=epsg:2157"
    END # PROJECTION
    # PROJECTION
    # PROJECTION
    LAYER
        TYPE LINE
    END # LAYER
END # MAP