BATCH-2235: Updated ExitStatus#isRunning logic to use correct strings

spring-batch-core/src/main/java/org/springframework/batch/core/ExitStatus.java

@@ -226,10 +226,10 @@ public class ExitStatus implements Serializable, Comparable<ExitStatus> {
 	/**
 	 * Check if this status represents a running process.
 	 *
-	 * @return true if the exit code is "RUNNING" or "UNKNOWN"
+	 * @return true if the exit code is "EXECUTING" or "UNKNOWN"
 	 */
 	public boolean isRunning() {
-		return "RUNNING".equals(this.exitCode) || "UNKNOWN".equals(this.exitCode);
+		return "EXECUTING".equals(this.exitCode) || "UNKNOWN".equals(this.exitCode);
 	}
 
 	/**