Fix typos

Change-Id: I8758872f6a5270de3f9b9dea750b9d40c7a446db
Reviewed-on: https://gerrit.libreoffice.org/57800Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
Tested-by: Jenkins

include/salhelper/dynload.hxx

@@ -143,7 +143,7 @@ public:
             m_pLoader->acquire();
     }
 
-    /// Destructor, decrease the reference count and unload the library if it is tha last instance.
+    /// Destructor, decrease the reference count and unload the library if it is the last instance.
     ~ODynamicLoader()
     {
         if( m_pLoader )

include/xmloff/txtparae.hxx

@@ -569,7 +569,7 @@ public:
      * they are control shapes, and if so, whether they should be exported or
      * not. If not, the form layer export will be notified accordingly.
      *
-     * The reason this method is located here is tha it needs to access the
+     * The reason this method is located here is that it needs to access the
      * XMLSectionExport, which is only available here.
      */
     void PreventExportOfControlsInMuteSections(

sc/source/filter/inc/stylesbuffer.hxx

@@ -712,7 +712,7 @@ public:
 
     /** Creates the style sheet in the document described by this cell style object. */
     void                createCellStyle();
-    /** Stores tha passed final style name and creates the cell style, if it is
+    /** Stores the passed final style name and creates the cell style, if it is
         user-defined or modified built-in. */
     void                finalizeImport( const OUString& rFinalName );