Update write.py

Adding recommendation from 4iar#2

write.py

@@ -3,6 +3,7 @@
 from __future__ import print_function
 import lldb
 import argparse
+import re
 
 
 def parse_args(raw_args):
@@ -28,13 +29,21 @@ def parse_args(raw_args):
 
     return args
 
+def strip_esc_seq(s):
+    """Strip ANSI escape sequences from string."""
+    esc_seq_re = re.compile(r'\x1b[^m]*m')
+    return esc_seq_re.sub('', s)
+
+
 
 def write_to_file(filename, command, output):
     """Write the output to the given file, headed by the command"""
     mode = 'a' if os.path.exists(filename) else 'w'
     f = open(filename, mode)
     f.write("(lldb) " + command + '\n\n')
-    f.write(output)
+    f.write(strip_esc_seq(output))
+    f.flush();
+    f.close();
 
 
 def handle_call(debugger, raw_args, result, internal_dict):