Minor string changes

src/main/java/gregtech/api/GregTech_API.java

@@ -284,7 +284,7 @@ public class GregTech_API {
      * You should call @causeMachineUpdate in @Block.breakBlock and in @Block.onBlockAdded of your registered Block.
      * You don't need to register TileEntities which implement @IMachineBlockUpdateable
      *
-     * @param aID   the ID of your Block
+     * @param aBlock   the Block
      * @param aMeta the Metadata of the Blocks as Bitmask! -1 or ~0 for all Metavalues
      */
     public static boolean registerMachineBlock(Block aBlock, int aMeta) {

src/main/java/gregtech/common/covers/GT_Cover_SolarPanel.java

@@ -67,7 +67,7 @@ public class GT_Cover_SolarPanel
                 return true;
             }
         }
-        GT_Utility.sendChatToPlayer(aPlayer,"You need water bucket in inventory to clean the panel with hand.");
+        GT_Utility.sendChatToPlayer(aPlayer,"You need water bucket in inventory to clean the panel.");
         return false;
     }