Inconsistency in APIExample

[NilsIrl]

Moved from tesseract-ocr/tesseract#2832.

Current Behavior:

The the wiki page APIExample, for the python example, the handle api is is run through the TessBaseAPIDelete function if the api failed to be initialized whereas for the C example, this is not the case.

python:

rc = tesseract.TessBaseAPIInit3(api, TESSDATA_PREFIX, lang)
if (rc):
    tesseract.TessBaseAPIDelete(api)
    print("Could not initialize tesseract.\n")
    exit(3)

c:

if(TessBaseAPIInit3(handle, NULL, "eng") != 0)
    die("Error initializing tesseract\n");

Expected Behavior:

Either the python example doesn't destroy the api handle or the api handle is destroyed in the c example.

Suggested Fix:

Change either of the examples so they both do the same thing. I do not know tesseract enough to be able to tell which is the correct one. However, I feel like the correct one would be to add TessBaseAPIDelete to the C example as it seems to be an omission.