[opencv] 40/71: fix small typo

[Nobuhiro Iwamatsu]

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iwamatsu pushed a commit to annotated tag 2.4.13.1
in repository opencv.

commit 79d8d0da3b3b408c578da3ea4db9f806a532850a
Author: StevenPuttemans <steven.puttemans at kuleuven.be>
Date:   Mon Aug 8 10:58:46 2016 +0200

    fix small typo
---
 modules/features2d/doc/common_interfaces_of_feature_detectors.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/features2d/doc/common_interfaces_of_feature_detectors.rst b/modules/features2d/doc/common_interfaces_of_feature_detectors.rst
index 9f7b630..a42ac07 100644
--- a/modules/features2d/doc/common_interfaces_of_feature_detectors.rst
+++ b/modules/features2d/doc/common_interfaces_of_feature_detectors.rst
@@ -147,7 +147,7 @@ for example: ``"GridFAST"``, ``"PyramidSTAR"`` .
 .. note:: When using the SIFT and SURF detector types be sure to add the following lines to your code
 
      * Add an extra include: `#include <opencv2/nonfree/nonfree.hpp>`
-     * Add an initialisation function at the start of your code: `initModules_nonfree();`
+     * Add an initialisation function at the start of your code: `initModule_nonfree();`
 
 FastFeatureDetector
 -------------------

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