Update doc on ArgHandlerDumpSignatures and ArgHandlerMaxPermsPerPrecompile.

Patch by: spoon
Review by: me

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@6492 8db76d5a-ed1c-0410-87a9-c151d255dfc7
diff --git a/dev/core/src/com/google/gwt/dev/util/arg/ArgHandlerDumpSignatures.java b/dev/core/src/com/google/gwt/dev/util/arg/ArgHandlerDumpSignatures.java
index 620db3b..b51ee39 100644
--- a/dev/core/src/com/google/gwt/dev/util/arg/ArgHandlerDumpSignatures.java
+++ b/dev/core/src/com/google/gwt/dev/util/arg/ArgHandlerDumpSignatures.java
@@ -30,14 +30,17 @@
     this.option = option;
   }
 
+  @Override
   public String getPurpose() {
-    return "Dump the singatures all loaded types and their members";
+    return "Dump the signatures of all loaded types and their members";
   }
 
+  @Override
   public String getTag() {
     return "-dumpSignatures";
   }
 
+  @Override
   public String[] getTagArgs() {
     return new String[] {"style"};
   }
diff --git a/dev/core/src/com/google/gwt/dev/util/arg/ArgHandlerMaxPermsPerPrecompile.java b/dev/core/src/com/google/gwt/dev/util/arg/ArgHandlerMaxPermsPerPrecompile.java
index 08bc229..7ffd8b5 100644
--- a/dev/core/src/com/google/gwt/dev/util/arg/ArgHandlerMaxPermsPerPrecompile.java
+++ b/dev/core/src/com/google/gwt/dev/util/arg/ArgHandlerMaxPermsPerPrecompile.java
@@ -19,6 +19,8 @@
 
 /**
  * Handles an argument for {@link OptionMaxPermsPerPrecompile}.
+ * 
+ * TODO(spoon) delete this obsolete option.
  */
 public class ArgHandlerMaxPermsPerPrecompile extends ArgHandlerInt {
 
@@ -35,7 +37,7 @@
 
   @Override
   public String getPurpose() {
-    return "maximum permutations to compile at a time";
+    return "ignored; soon to be deleted";
   }
 
   @Override