:bugs: 세부주소 null일때 빈문자열 처리

Author: cheshireHYUN

src/main/java/com/amatta/findog/domain/Dog.java

@@ -66,6 +66,8 @@ protected void initializeDog(String color, String breed, Sex sex, boolean isNeut
     }
 
     public String getFullAddress(){
-        return location.getAddress1()+", "+location.getAddress2();
+        String str1 = location.getAddress1() == null? "" : location.getAddress1();
+        String str2 = location.getAddress2() == null? "" : location.getAddress2();
+        return str1+" "+ str2;
     }
 }