typo, usage and comment added

pastebinit

@@ -19,14 +19,13 @@
 
 import urllib, os, sys
 
+#Check if a filename is passed as argument, otherwise show the usages
 try:
     filename=sys.argv[1]
 except:
     sys.exit("usage: "+sys.argv[0]+" [filename|\"-\"]"+"\n\nDefault pastebin: http://ubuntu.pastebin.com")
-try:
-    website=sys.argv[2]
-except:
-    website="http://ubuntu.pastebin.com"
+
+#Read the content and put it into content
 
 if filename == "-":
     content=sys.stdin.read()
@@ -38,11 +37,19 @@ else:
     except:
         sys.exit("Unable to open : "+filename)
 
+#Check if an extra pastebin was pasted as parameter
+
+try:
+    website=sys.argv[2]
+except:
+    website="http://ubuntu.pastebin.com"
+
+
 user=os.environ.get('USER')
 
 params={}
 
-#Common fro pastebin.com and paste.ubuntu-nl.org
+#Common for pastebin.com and paste.ubuntu-nl.org
 params['poster']=user
 
 #For pastebin.com