Switch back to line (//!) doc comments now we can wrap these

These can be wrapped with either of nightly rustfmt or a patch to the
WrapToColumn plugin for RustRover:
abrookins/WrapToColumn#71

Author: mshroyer

coretypes/src/measure.rs

@@ -1,10 +1,8 @@
-/*!
-Simple zero-overhead unit of measure types
-
-A poor man's version of F#'s units of measure, in order to keep units correct by
-construction.  I wrote these rather than use the popular `uom` crate because the
-latter obscures the actual storage unit and numeric type.
-*/
+//! Simple zero-overhead unit of measure types
+//!
+//! A poor man's version of F#'s units of measure, in order to keep units
+//! correct by construction.  I wrote these rather than use the popular `uom`
+//! crate because the latter obscures the actual storage unit and numeric type.
 
 use std::ops::{Add, AddAssign, Div};
 

coursepointer/src/course.rs

@@ -1,6 +1,4 @@
-/*!
-Abstract course elements
-*/
+//! Abstract course elements
 
 use coretypes::GeoPoint;
 use coretypes::measure::Meters;

coursepointer/src/gpx.rs

@@ -1,19 +1,17 @@
-/*!
-GPX track/route and waypoint reader
-
-# Usage
-
-Provides an iterator that reads in sequence the trackpoints/routepoints,
-waypoints, and other relevant items from a GPX track file.
-
-This module treats GPX routes and tracks synonymously, except that tracks may
-also contain segments.
-
-To use module, instantiate a [`GpxReader`] by calling
-[`GpxReader::from_text`] or [`GpxReader::from_reader`]. Iterating over the
-[`GpxReader`] will produce a sequence of [`GpxItem`] describing the
-contents of the input.
-*/
+//! GPX track/route and waypoint reader
+//!
+//! # Usage
+//!
+//! Provides an iterator that reads in sequence the trackpoints/routepoints,
+//! waypoints, and other relevant items from a GPX track file.
+//!
+//! This module treats GPX routes and tracks synonymously, except that tracks
+//! may also contain segments.
+//!
+//! To use this module, instantiate a [`GpxReader`] by calling
+//! [`GpxReader::from_text`] or [`GpxReader::from_reader`]. Iterating over the
+//! [`GpxReader`] will produce a sequence of [`GpxItem`] describing the
+//! contents of the input.
 
 use std::io::BufRead;
 use std::num::ParseFloatError;

rustfmt.toml

@@ -2,3 +2,5 @@ unstable_features = true
 group_imports = "StdExternalCrate"
 imports_granularity = "Module"
 reorder_imports = true
+wrap_comments = true
+comment_width = 80