Fixed text file auto-detection: treat EOF character 032 at the end of file as printable

Signed-off-by: Dmitry Kakurin <Dmitry.Kakurin@gmail.com>

convert.c

@@ -58,6 +58,10 @@ static void gather_stats(const char *buf, unsigned long size, struct text_stat *
 		else
 			stats->printable++;
 	}
+
+	// If file ends with EOF then don't count this EOF as non-printable
+	if ( size >= 1 && buf[size-1] == '\032' )
+		stats->nonprintable--;
 }
 
 /*