fixed memory leak in liquids.cpp

plugins/CMakeLists.txt

@@ -116,8 +116,6 @@ if(BUILD_VAMPCHECK)
 endif()
 
 # alternative version of liquids which can be used non-interactively after configuring it
-# similar to digcircle: simply store stuff in statics and use it when called without parameters
-# this will allow to map the command to a keybinding for much more convenient messing with the map
 OPTION(BUILD_LIQUIDSGO "Build the liquidsgo plugin." ON)
 if(BUILD_LIQUIDSGO)
     add_subdirectory(liquidsgo)

plugins/liquids.cpp

@@ -605,5 +605,9 @@ command_result df_liquids (color_ostream &out_, vector <string> & parameters)
             out << command << " : unknown command." << endl;
         }
     }
+    
+    //cleanup
+    delete brush;
+
     return CR_OK;
 }