Fix quoting in Fformat calls

Fix quoting in Fformat calls

* src/image.c (xbm_read_bitmap_data, xbm_load_image, xbm_load)
(xpm_load, xpm_load_image, pbm_load, png_load_body)
(jpeg_load_body, tiff_load, gif_load, imagemagick_load_image)
(imagemagick_load, svg_load, svg_load_image, gs_load)
(x_kill_gs_process):
* src/lread.c (load_warn_old_style_backquotes):
* src/xfaces.c (load_pixmap):
* src/xselect.c (x_clipboard_manager_error_1):
Quote diagnostics according to user preference when calling
Fformat or its derivatives.