Fix missing word in docuentation of guestfs_readdir.

(cherry picked from commit b8861242d13cc034383a56ba891d3e0b9123a99c)

diff --git a/src/generator.ml b/src/generator.ml
index c98cffb..3db0506 100755 (executable)
--- a/src/generator.ml
+++ b/src/generator.ml
@@ -3141,7 +3141,7 @@ Unknown file type
 
 =item '?'
 
-The L<readdir(3)> returned a C<d_type> field with an
+The L<readdir(3)> call returned a C<d_type> field with an
 unexpected value
 
 =back