public String readAsciiString(long index, int length) throws IOException {
		return readString(index, length, StandardCharsets.US_ASCII, 1);
	}
Reads an fixed length US-ASCII string starting at <code>index</code>.
<p>
Trailing null terminator characters will be removed.  (suitable for reading
a string from a fixed length field that is padded with trailing null chars)
<p>
Note: this method no longer trims() the returned String.

@param index where the string begins
@param length number of bytes to read
@return the US-ASCII string
@exception IOException if an I/O error occurs
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/BinaryReader.java