…grid_debug

 * avoid link error (move the implementation of software version to header)
 * make getConvertFuncFp16 local (move from precomp.hpp to convert.hpp)
 * fix error on 32bit x86

…flow

C4189: 'clImageUV' : local variable is initialized but not referenced

Fixed snprintf for VS 2013 (#8816)

* Fixed snprintf for VS 2013

* snprintf: removed declaration from header, changed implementation

* cv_snprintf corrected according to comments

* update snprintf patch

There is no cast to wide integer type:
    std::numeric_limits<ST>::max() * std::numeric_limits<ST>::max()

how_to_scan_images.markdown: fix grammar mistakes

Remove unnecessary Non-ASCII characters from source code (#9075)

* Remove unnecessary Non-ASCII characters from source code

Remove unnecessary Non-ASCII characters and replace them with ASCII
characters

* Remove dashes in the @param statement

Remove dashes and place single space in the @param statement to keep
coding style

* misc: more fixes for non-ASCII symbols

* misc: fix non-ASCII symbol in CMake file

Fix wrong mat access in introduction_to_pca.cpp

Fix error message fisheye CALIB_CHECK_COND

version 3.3.0-rc