powerFail() did not explicitly return a true value.

Jack Christensen · Jack Christensen · commit b6dbb0a1f08e · 2012-11-25T22:34:07.000-05:00
(It must have worked most of the time just due to dumb luck.)
diff --git a/MCP79412RTC.cpp b/MCP79412RTC.cpp
@@ -401,7 +401,8 @@ boolean MCP79412RTC::powerFail(time_t *powerDown, time_t *powerUp)
         if (*powerDown > *powerUp) {
             --dn.Year;
             *powerDown = makeTime(dn);
-        }            
+        }
+        return true;
     }
     else
         return false;
