Fixed findings

List of Findings

Error: GCC_ANALYZER_WARNING (CWE-476): [#def1]
util-linux-2.42.start/disk-utils/fdformat.c:129:49: warning[-Wanalyzer-possible-null-dereference]: dereference of possibly-NULL ‘xmalloc(track_size)’
#  127|   				}
#  128|   				for (count = 0; count < track_size; count++)
#  129|-> 					if (data[count] != FD_FILL_BYTE) {
#  130|   						if (retries_left) {
#  131|   							format_begin(ctrl);

Error: COMPILER_WARNING (CWE-569): [#def2]
util-linux-2.42.start/lsfd-cmd/error.c: scope_hint: In function ‘get_errno_name’
util-linux-2.42.start/lsfd-cmd/error.c:49:30: warning[-Wtype-limits]: comparison of unsigned expression in ‘< 0’ is always false
#   49 |         for (size_t i = 0; i < ARRAY_SIZE(errnos); i ++) {
#      |                              ^
#   47|   static const char *get_errno_name(int ern)
#   48|   {
#   49|-> 	for (size_t i = 0; i < ARRAY_SIZE(errnos); i ++) {
#   50|   		if (errnos[i].number == ern)
#   51|   			return errnos[i].name;

Error: GCC_ANALYZER_WARNING (CWE-476): [#def3]
util-linux-2.42.start/misc-utils/blkid.c: scope_hint: In function ‘main’
util-linux-2.42.start/misc-utils/blkid.c:889:43: warning[-Wanalyzer-null-dereference]: dereference of NULL ‘xcalloc((long unsigned int)(argc - optind), 8) + (long unsigned int)numdev * 8’
util-linux-2.42.start/misc-utils/blkid.c:18: included_from: Included from here.
#  887|   				continue;
#  888|   
#  889|-> 			devices[numdev++] = dev;
#  890|   		}
#  891|   

Error: GCC_ANALYZER_WARNING (CWE-476): [#def4]
util-linux-2.42.start/misc-utils/cal.c: scope_hint: In function ‘monthly’
util-linux-2.42.start/misc-utils/cal.c:1099:28: warning[-Wanalyzer-null-dereference]: dereference of NULL ‘xcalloc((long unsigned int)*ctl.months_in_row, 208)’
util-linux-2.42.start/misc-utils/cal.c:79: included_from: Included from here.
# 1097|   
# 1098|   	for (i = 0; i < ctl->months_in_row - 1; i++)
# 1099|-> 		ms[i].next = &ms[i + 1];
# 1100|   
# 1101|   	rows = (ctl->num_months - 1) / ctl->months_in_row;

Error: GCC_ANALYZER_WARNING (CWE-476): [#def5]
util-linux-2.42.start/misc-utils/logger.c:1053:24: warning[-Wanalyzer-possible-null-dereference]: dereference of possibly-NULL ‘xmalloc(*ctl.max_message_size + 4) + i’
# 1051|   			c = getchar();
# 1052|   		}
# 1053|-> 		buf[i] = '\0';
# 1054|   
# 1055|   		if (i > 0 || !ctl->skip_empty_lines) {

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