Fix typo in PairwiseField debug statement

Author: ldowen

src/Neighbor/PairwiseField.hh

@@ -60,8 +60,8 @@ public:
   iterator end()                                                { REQUIRE(!mPairsPtr.expired()); return iterator(&(*mArray.end())); }
 
   // Comparators
-  bool operator==(const PairwiseField& rhs) const               { REQUIRE(!mPairPtr.expired()); return mArray == rhs.mArray; }
-  bool operator!=(const PairwiseField& rhs) const               { REQUIRE(!mPairPtr.expired()); return mArray != rhs.mArray; }
+  bool operator==(const PairwiseField& rhs) const               { REQUIRE(!mPairsPtr.expired()); return mArray == rhs.mArray; }
+  bool operator!=(const PairwiseField& rhs) const               { REQUIRE(!mPairsPtr.expired()); return mArray != rhs.mArray; }
 
   // Other methods
   const NodePairList& pairs() const;