Merge georust#38

38: fix georust#25: geodsolve29. r=michaelkirk a=stonylohr

Test was using wrong ellipsoid, due to copy-paste error.

- [ ] I agree to follow the project's [code of conduct](https://github.com/georust/geo/blob/master/CODE_OF_CONDUCT.md).
- [ ] I added an entry to `CHANGES.md` if knowledge of this change could be valuable to users.
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Co-authored-by: Stony <stony.lohr@gmail.com>

src/geodesic.rs

@@ -2289,10 +2289,9 @@ mod tests {
     }
 
     #[test]
-    #[ignore] // Fails existing behavior.
     fn test_std_geodesic_geodsolve29() {
         // Check longitude unrolling with inverse calculation 2015-09-16
-        let geod = Geodesic::new(6.4e6, 0.1);
+        let geod = Geodesic::wgs84();
         let (_a12, s12, _salp1, _calp1, _salp2, _calp2, _m12, _M12, _M21, _S12) =
             geod._gen_inverse(0.0, 539.0, 0.0, 181.0, caps::STANDARD);
         // Note: This is also supposed to check adjusted longitudes, but geographiclib-rs