Carlos R. Mafra 7a84127a27 Fix improper use of function sentinel ...

This patch addresses this warning of gcc:

wfontpanel.c: In function 'listFamilies':
wfontpanel.c:588: warning: missing sentinel in function call

Fix it by using the 'NULL' pointer instead of 0 (zero) as the
sentinel.

For more information, see
http://www.linuxonly.nl/docs/2/2_GCC_4_warnings_about_sentinels.html
in particular,

   "On most systems, there is no difference between 0 and (char *)0.
    On 64 bit systems, however, the integer 0 is 32 bits and the
    pointer 0 is 64 bits. The compiler does not know whether it is
    an integer or a pointer, and defaults for the integer. This will
    not clear the upper 32 bits and the function will not stop
    scanning its parameters."

Note that here in my 64-bit Mandriva I don't need to cast (char *)NULL.

2009-08-17 18:13:58 +02:00

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