fix typos in comments

(cherry picked from commit 60459f97)
Signed-off-by: Steffen Müthing <muething@dune-project.org>

dune/common/bitsetvector.hh

@@ -578,7 +578,7 @@ namespace Dune {
 
   private:
 
-    // get a prepresentation as value_type
+    //! Get a representation as value_type
     value_type getRepr(int i) const
     {
       value_type bits;

dune/common/parallel/indicessyncer.hh

@@ -1015,7 +1015,7 @@ namespace Dune
 
     if(iterators.isAtEnd() || iterators.globalIndexPair() != globalPair) {
       // The entry is not yet known
-      // Insert in the the list and do not change the first iterator.
+      // Insert in the list and do not change the first iterator.
       iterators.insert(RemoteIndex(Attribute(attribute)),globalPair);
       return;
     }
@@ -1033,7 +1033,7 @@ namespace Dune
 
     if(!indexIsThere)
       // The entry is not yet known
-      // Insert in the the list and do not change the first iterator.
+      // Insert in the list and do not change the first iterator.
       iterators.insert(RemoteIndex(Attribute(attribute)),globalPair);
   }
 

dune/common/parallel/variablesizecommunicator.hh

@@ -425,7 +425,7 @@ private:
   template<bool forward,class DataHandle>
   void communicate(DataHandle& handle);
   /**
-   * @brief Initialize the the trackers along the interface for the communication.
+   * @brief Initialize the trackers along the interface for the communication.
    * @tparam FORWARD If true we send in the forward direction.
    * @tparam DataHandle DataHandle The type of the data handle.
    * @param handle The handle describing the data and responsible for gather

dune/common/stringutility.hh

@@ -41,7 +41,7 @@ namespace Dune {
 
   /** \brief Check whether a character container has a given suffix
    *
-   * The container must support the the begin() and size() methods and the
+   * The container must support the begin() and size() methods and the
    * const_iterator member type.
    *
    * \note This is slow for containers which don't have random access iterators.

m4/dune.m4

@@ -79,7 +79,7 @@ AS_VAR_POPDEF([_dune_aap_TAG])dnl
 # DUNE_ADD_MODULE_DEPS (MODULE, TAG, [CPPFLAGS], [LDFLAGS], [LIBS])
 #
 # Add the flags and libs of an external library to the modules flags
-# and libs and to the the DUNE_* and ALL_PKG_* families of global flags and
+# and libs and to the DUNE_* and ALL_PKG_* families of global flags and
 # libs.
 #
 # MODULE The name to the DUNE module to add the flags for.  It should be