Replace dashes when using the default directory in sql-client

go/cmd/dolt/commands/sqlserver/sqlclient.go

@@ -182,7 +182,7 @@ func (cmd SqlClientCmd) Exec(ctx context.Context, commandStr string, args []stri
 			cli.PrintErrln(color.RedString(err.Error()))
 			return 1
 		}
-		dbToUse = filepath.Base(directory)
+		dbToUse = strings.Replace(filepath.Base(directory), "-", "_", -1)
 	}
 	format := engine.FormatTabular
 	if hasResultFormat {

integration-tests/bats/sql-client.bats

@@ -134,3 +134,13 @@ teardown() {
     [ $status -ne 0 ]
     [[ $output =~ "not found" ]] || false
 }
+
+@test "sql-client: handle dashes for implicit database" {
+    make_repo test-dashes
+    cd test-dashes
+    start_sql_server test-dashes
+
+    run	dolt sql-client -u dolt -P $PORT -q "show databases"
+    [ $status -eq 0 ]
+    [[ $output =~ " test_dashes " ]] || false
+}