Fix typos and comment style in cdbcat.c

Fixes a few observed spelling errors and also removes excessive
whitespace in comments.

src/backend/cdb/cdbcat.c

@@ -201,7 +201,7 @@ GpPolicyFetch(MemoryContext mcxt, Oid tbloid)
 			Assert(nattrs >= 0);
 		}
 
-		/* Create an GpPolicy object. */
+		/* Create a GpPolicy object. */
 		policy = (GpPolicy *) MemoryContextAlloc(mcxt, SizeOfGpPolicy(nattrs));
 		policy->ptype = POLICYTYPE_PARTITIONED;
 		policy->nattrs = nattrs;
@@ -253,7 +253,6 @@ extract_INT2OID_array(Datum array_datum, int *lenp, int16 **vecp)
 /*
  * Sets the policy of a table into the gp_distribution_policy table
  * from a GpPolicy structure.
- *
  */
 void
 GpPolicyStore(Oid tbloid, const GpPolicy *policy)
@@ -325,7 +324,6 @@ GpPolicyStore(Oid tbloid, const GpPolicy *policy)
 /*
  * Sets the policy of a table into the gp_distribution_policy table
  * from a GpPolicy structure.
- *
  */
 void
 GpPolicyReplace(Oid tbloid, const GpPolicy *policy)
@@ -425,7 +423,6 @@ GpPolicyReplace(Oid tbloid, const GpPolicy *policy)
 
 /*
  * Removes the policy of a table from the gp_distribution_policy table
-
  * Does nothing if the policy doesn't exist.
  */
 void
@@ -456,7 +453,7 @@ GpPolicyRemove(Oid tbloid)
 
 /*
  * Returns true only if the policy is a randomly distributed.  In other cases,
- * including non-distributed table case, returns fase.
+ * including non-distributed table case, returns false.
  */
 bool
 GpPolicyIsRandomly(GpPolicy *policy)
@@ -526,7 +523,7 @@ checkPolicyForUniqueIndex(Relation rel, AttrNumber *indattr, int nidxatts,
 	 * If the existing policy is not a subset, we must either error out or
 	 * update the distribution policy. It might be tempting to say that even
 	 * when the policy is a subset, we should update it to match the index
-	 * definition. The problem then is that if the user actually wants to
+	 * definition. The problem then is that if the user actually wants a
 	 * distribution on (a, b) but then creates an index on (a, b, c) we'll
 	 * change the policy underneath them.
 	 *