public String readAsciiString(long index) throws IOException {
		return readString(index, StandardCharsets.US_ASCII, 1);
	}
Reads a null terminated US-ASCII string, starting at specified index, stopping at
the first null character.
<p>
Note: this method no longer trims() the returned String.

@param index starting position of the string
@return US-ASCII string, excluding the trailing null terminator character
@throws IOException if error reading bytes
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/BinaryReader.java