Changed constants name MIN_TEAM_LENGTH value to 2 and the error message (#4149)

model/team.go

@@ -188,7 +188,7 @@ func IsValidTeamName(s string) bool {
 		return false
 	}
 
-	if len(s) <= 3 {
+	if len(s) <= 1 {
 		return false
 	}
 

model/team_test.go

@@ -84,11 +84,11 @@ var domains = []struct {
 	{"spin-punch-", false},
 	{"spin_punch", false},
 	{"a", false},
-	{"aa", false},
-	{"aaa", false},
+	{"aa", true},
+	{"aaa", true},
 	{"aaa-999b", true},
 	{"b00b", true},
-	{"b))b", false},
+	{"b)", false},
 	{"test", true},
 }