gis/gpsbabel: Wrap README at 72 columns.

Signed-off-by: B. Watson <yalhcru@gmail.com>

gis/gpsbabel/README

@@ -1,13 +1,16 @@
-GPSBabel converts waypoints, tracks, and routes from one format to another,
-whether that format is a common mapping format like Delorme, Streets and
-Trips, or even a serial or USB upload or download to a GPS receiver such as
-those from Garmin and Magellan.  By flattening the Tower of Babel that the
-authors of various programs for manipulating GPS data have imposed upon us, it
-returns to us the ability to freely move our own waypoint data between the
-programs and hardware we choose to use.
+GPSBabel converts waypoints, tracks, and routes from one format to
+another, whether that format is a common mapping format like Delorme,
+Streets and Trips, or even a serial or USB upload or download to a GPS
+receiver such as those from Garmin and Magellan. By flattening the
+Tower of Babel that the authors of various programs for manipulating
+GPS data have imposed upon us, it returns to us the ability to freely
+move our own waypoint data between the programs and hardware we choose
+to use.
 
-It contains extensive data manipulation abilities making it a convenient for
-server-side processing or as the backend for other tools.
+It contains extensive data manipulation abilities making it a
+convenient for server-side processing or as the backend for other
+tools.
 
-It does not convert, transfer, send, or manipulate maps. We process data that
-may (or may not be) placed on a map, such as waypoints, tracks, and routes.
+It does not convert, transfer, send, or manipulate maps. We process
+data that may (or may not be) placed on a map, such as waypoints,
+tracks, and routes.