Suppress text output when in --format json mode

A couple prints were not conditional, polluting the machine readable output.

Author: per1234

check/check.go

@@ -33,7 +33,9 @@ import (
 
 // RunChecks runs all checks for the given project and outputs the results.
 func RunChecks(project project.Type) {
-	fmt.Printf("Checking %s in %s\n", project.ProjectType, project.Path)
+	if configuration.OutputFormat() == outputformat.Text {
+		fmt.Printf("Checking %s in %s\n", project.ProjectType, project.Path)
+	}
 
 	checkdata.Initialize(project, configuration.SchemasPath())