public static String getRelativePath(File base, File sub) {
		String baseStr = getNormalizedFilePath(base);
		if (!baseStr.endsWith("/")) {
			baseStr = baseStr + "/";
		}
		String subStr = getNormalizedFilePath(sub);
		return subStr.startsWith(baseStr) ? subStr.substring(baseStr.length()) : subStr;
	}
Returns a string that represents the relative path (normalized to forward slashes)
from the {@code base} path to the {@code sub} path.  

If {@code sub} is not really a subpath of {@code base}, the full path to {@code sub} will be returned.
<p>
<li>"/dir1", "/dir1/sub1/sub2" returns "sub1/sub2".
<li>"/", "/sub1/sub2" returns "sub1/sub2".
<li>"/dir1", "/dir2/sub1" returns "/dir2/sub1".
<li>"c:\\dir1", "c:\\dir1\\sub1\\sub2" returns "sub1/sub2". 

@param base
@param sub
@return
Ghidra/Features/FunctionID/ghidra_scripts/MSLibBatchImportGenerator.java