[cleanup] fix typos in comments

dumux/freeflow/navierstokes/staggered/localresidual.hh

@@ -300,7 +300,7 @@ public:
     }
 
     /*!
-     * \brief Evaluate boundary boundary fluxes for a face dof
+     * \brief Evaluate boundary fluxes for a face dof
      */
     FaceResidual computeBoundaryFluxForFace(const Problem& problem,
                                             const Element& element,

dumux/material/spatialparams/gstatrandomfield.hh

@@ -39,7 +39,7 @@ namespace Dumux {
  * geostatistical random fields (see <a href="http://www.gstat.org">http://www.gstat.org</a>
  * or \cite Pebesma1998a).
  *
- * To use this class, execute the installexternal.sh from your DuMuX root
+ * To use this class, execute the installexternal.py from your DuMuX root
  * directory or donwload, unpack and install the tarball from the gstat-website.
  * Then rerun cmake (in the second case set GSTAT_ROOT in your input file to the
  * path where gstat is installed).

test/multidomain/facet/test_gridmanager.cc

@@ -101,8 +101,8 @@ int main (int argc, char *argv[])
             DUNE_THROW(Dune::InvalidStateException, "Edge element has domain marker " << domainMarker << " instead of 10");
     }
 
-    // Check boundary boundary segments. There should be mesh
-    // file-defined segments on all sides except the positive x-direction
+    // Check boundary segments. There should be mesh file-defined
+    // segments on all sides except the positive x-direction
     std::size_t bSegmentCount = 0;
     std::size_t posXCount, negXCount, posYCount, negYCount, posZCount, negZCount;
     posXCount = negXCount = posYCount = negYCount = posZCount = negZCount = 0;