findCompressionType always uses RLE if leading EOL is missing (#657)

Update of the last read byte is missing since the last update. So if only the first EOL is missing, further EOLs after the lines are not detected.

imageio/imageio-tiff/src/main/java/com/twelvemonkeys/imageio/plugins/tiff/CCITTFaxDecoderStream.java

@@ -170,6 +170,7 @@ final class CCITTFaxDecoderStream extends FilterInputStream {
                             // no EOL before stream end
                             return TIFFBaseline.COMPRESSION_CCITT_MODIFIED_HUFFMAN_RLE;
                         }
+                        streamByte = (byte) read;
                     }
 
                     b = (short) ((b << 1) + ((streamByte >> (7 - (i % 8))) & 0x01));