#3 fix segmentation fault in app_icd__read_icd_config

[stefan knoblich]

This patch fixes a segmentation fault in
app_icd__read_icd_config, the bug is present on all
platforms but
only triggered on ppc(64) and amd64

/* iterrate over our modules & see if the module string
is in the module_mask */
for (mod = APP_ICD; mod <= ICD_MAX_MODULES; ++mod) {
if (icd_module_strings[mod] != NULL &&
icd_instr(varlist->value, icd_module_strings[mod],
icd_delimiter) )

iterates over icd_module_strings but won't stop on the
last element (which is "NULL") resulting in a
segmentation fault

attached patch moves to != NULL check into the for
statement, aborting the loop if the last element in the
array has been reached

thanks to Danny van Dyk (Kugelfang) for finding this

[stefan knoblich]

patch to fix segfault in app_icd__read_icd_config