[simple-scan] Fix typos in code comments

[Robert Ancell <rancell src gnome org>]

commit f3d89372f1b6cfe0736795ea2c85856b8082963e
Author: Robert Ancell <robert ancell canonical com>
Date:   Wed Nov 22 17:01:01 2017 +1300

    Fix typos in code comments

 src/scanner.vala     |    2 +-
 src/simple-scan.vala |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/scanner.vala b/src/scanner.vala
index f98b4b6..cd7c300 100644
--- a/src/scanner.vala
+++ b/src/scanner.vala
@@ -1155,7 +1155,7 @@ public class Scanner
         if ((option.cap & Sane.Capability.INACTIVE) != 0)
             return;
 
-        /* Some options are unnammed (e.g. Option 0) */
+        /* Some options are unnamed (e.g. Option 0) */
         if (option.name == null)
             return;
 
diff --git a/src/simple-scan.vala b/src/simple-scan.vala
index 841e702..6e0bab6 100644
--- a/src/simple-scan.vala
+++ b/src/simple-scan.vala
@@ -165,7 +165,7 @@ public class SimpleScan : Gtk.Application
      * print ('{ ' + ', '.join (ids) + ' }')
      */
 
-    /* HPAIO IDs extraced using the following Python:
+    /* HPAIO IDs extracted using the following Python:
      * import sys
      * ids = []
      * for f in sys.argv: