Clean up code formatting in tests

- Remove trailing whitespace
- Use len(fields) > 0 instead of >= 1 for clearer intent

Co-authored-by: dlevy-msft-sql <194277063+dlevy-msft-sql@users.noreply.github.com>

Author: Copilot

pkg/sqlcmd/format_test.go

@@ -259,11 +259,11 @@ func TestFormatterRealFormatting(t *testing.T) {
 
 	// Verify that typical REAL values use decimal notation (not scientific)
 	assert.Contains(t, dataLine, "123.456", "Output should contain decimal representation of typical REAL value")
-	
+
 	// Check that the typical value portion doesn't use scientific notation
 	// Parse columns using whitespace (the default column separator)
 	fields := strings.Fields(dataLine)
-	if len(fields) >= 1 {
+	if len(fields) > 0 {
 		// Find the field containing the typical value
 		for _, field := range fields {
 			if strings.Contains(field, "123.") {