Merge branch 'fix-output-param' of 'https://github.com/sduenas/grimoi…

…relab-chronicler'

Merges #1 
Closes #1

chronicler/chronicler.py

@@ -36,7 +36,7 @@
 @click.option(
     "--output",
     help="File where events will be written",
-    type=click.File("wb"),
+    type=click.File("w"),
     default=sys.stdout
 )
 @click.option(
@@ -49,7 +49,7 @@
 @click.argument('datasource')
 @click.version_option(__version__, message="%(prog)s %(version)s")
 def chronicler(datasource, input, output, json_line):
-    """Generates GrimoireLab events from the items obtained by Perceval.
+    """Generates GrimoireLab events from the items fetched by Perceval.
 
     The chronicler is a command line tool and a library that converts
     items generated by Perceval into events. The tool reads