private void checkLineStart() {
		if (atLineStart) {
			buffer.append(indent);
			atLineStart = false;
		}
	}
Append message string to log buffer.
NOTE: Method has no affect unless constructed with VERBOSE logging mode.
@param str message string
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/processors/sleigh/SleighDebugLogger.java