[SECURITY] Fedora 31 Update: pngcheck-2.3.0-3.fc31

pngcheck verifies the integrity of PNG, JNG and MNG files by checking the internal 32-bit CRCs checksums and decompressing the image data; it can optionally dump almost all of the chunk-level information in the image in human-readable form. For example, it can be used to print the basic statist i...