Fix 80char width in changelog.

CHANGELOG.md

@@ -22,7 +22,8 @@ v4.3.0
   (!537)
 - Fix bug with initial conditions of CG simulations using variable P (!543)
 - Fix bug in 3DH2D with non-zero Dirichlet boundary conditions (!545)
-- Added in a method to convert equispaced interpolated points back to coefficients which requires the introduction of a new StdRegions matrix.(!561)
+- Added in a method to convert equispaced interpolated points back to 
+  coefficients which requires the introduction of a new StdRegions matrix.(!561)
 - Add contribution guide (!551)
 
 **APESolver:**
@@ -42,7 +43,8 @@ v4.3.0
 - Fix bug in C^0 projection (!541))
 - Add command line option to set number of homogeneous planes (!540)
 - Add module to project set of points to a fld file(!561)
-- Add support for interpolating to a box of points and fix ability to run interppointstofld module in parallel when using a plane or box optio(!561)n 
+- Add support for interpolating to a box of points and fix ability to run
+  interppointstofld module in parallel when using a plane or box option (!561)
 - Add option to output equi-spaced points in VTU format (!550)
 - Add module innerproduct (!568)
 - Add command line option of `--part-only` and `--part-only-overlapping` (!569)