.wikiheaders-options: Fix include file path.

Author: icculus

.wikiheaders-options

@@ -4,7 +4,7 @@ incsubdir =
 wikisubdir = SDL_image
 apiprefixregex = IMG_
 mainincludefname = SDL_image.h
-versionfname = SDL_image.h
+versionfname = include/SDL_image.h
 versionmajorregex = \A\#define\s+SDL_IMAGE_MAJOR_VERSION\s+(\d+)\Z
 versionminorregex = \A\#define\s+SDL_IMAGE_MINOR_VERSION\s+(\d+)\Z
 versionpatchregex = \A\#define\s+SDL_IMAGE_PATCHLEVEL\s+(\d+)\Z