Corrected spelling in test and exception messages

Signed-off-by: Dave Hickin <david.hickin@diamond.ac.uk>

src/factory/Compare.cpp

@@ -62,7 +62,7 @@ bool operator==(const Field& a, const Field& b)
             return A==B;
         }
     default:
-        throw std::logic_error("Invalid Field type in comparision");
+        throw std::logic_error("Invalid Field type in comparison");
     }
 }
 

testApp/misc/testSharedVector.cpp

@@ -356,7 +356,7 @@ static void testPush()
 
 static void testVoid()
 {
-    testDiag("Test vecter cast to/from void");
+    testDiag("Test vector cast to/from void");
 
     epics::pvData::shared_vector<int32> typed(4);
 

testApp/pv/testPVData.cpp

@@ -575,14 +575,14 @@ static void testFieldAccess()
 
     try{
         fld->getAs<PVInt>("invalid");
-        testFail("missing requried exception");
+        testFail("missing required exception");
     }catch(std::runtime_error& e){
         testPass("caught expected exception: %s", e.what());
     }
 
     try{
         fld->getAs<PVDouble>("test");
-        testFail("missing requried exception");
+        testFail("missing required exception");
     }catch(std::runtime_error& e){
         testPass("caught expected exception: %s", e.what());
     }