Description I/O problems for [Landuses]

[MitchHeineman]

Two part issue:

• Existing descriptions are not read from the [Landuse] section of an input file.
• Descriptions are written from the GUI without leading semi-colons.

Example input:

[LANDUSES] ;; Cleaning Fraction Last
;;Name Interval Available Cleaned
;;-------------- ---------- ---------- ---------- ;Commercial only Commercial 14 0.8 7
;Forest and five other categories. Not swept ForestUndeveloped 0 0.8 0 ;Transportation and Marina Transportation 14 0.8 7

A simple read/write operation retains the first description (although it's not visible in the GUI). Note also the unneeded space inserted before each item.

[LANDUSES] ;; Cleaning Fraction Last ;;Name Interval Available Cleaned ;;-------------- ---------- ---------- ---------- ;Commercial only Commercial 14 0.8 7
ForestUndeveloped 0 0.8 0
Transportation 14 0.8 7

Descriptions created in the GUI are exported, but without required semi-colons: [LANDUSES] ;; Cleaning Fraction Last ;;Name Interval Available Cleaned ;;-------------- ---------- ---------- ---------- ;Commercial only test1 Commercial 14 0.8 7
test2 ForestUndeveloped 0 0.8 0
test3 Transportation 14 0.8 7

[TongZhai]

The above update allows SWMM to handle reading, writing, and displaying multiline comment per landuse.