private void updateSubTitle() {
		StringBuilder builder = new StringBuilder();
		builder.append(" ");
		int matchCount = resultsPanel.getMatchCount();
		if (matchCount > 0) {
			builder.append("(");
			builder.append(matchCount);
			builder.append(matchCount == 1 ? " entry)" : " entries)");
		}
		setSubTitle(builder.toString());
	}
Performs a scan on the current results, keeping only the results that match the type of scan.
Note: this method is public to facilitate testing.

@param scanner the scanner to use to reduce the results.
Ghidra/Features/Base/src/main/java/ghidra/features/base/memsearch/gui/MemorySearchProvider.java