Fix typo

Change-Id: I20bb74183e134c9bf597cd8b471fd6dc4104eb24

svx/qa/unit/data/svx-dialogs-test.txt

@@ -13,7 +13,7 @@
 # workdir/screenshots using the pattern of the ui-file name.
 #
 # Syntax:
-# - emty lines are allowed
+# - empty lines are allowed
 # - lines starting with '#' are treated as comment
 # - all other lines should contain a *.ui filename in the same
 #   notation as in the dialog constructors (see code)