Task #253 - fixed.err

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Error: GCC_ANALYZER_WARNING (CWE-688):
alsa-lib-1.2.11-build/alsa-lib-1.2.11/src/topology/save.c: scope_hint: In function 'tplg_save_printf'
alsa-lib-1.2.11-build/alsa-lib-1.2.11/src/topology/save.c:96:9: warning[-Wanalyzer-null-argument]: use of NULL 'buf.printf_buf' where non-null expected
alsa-lib-1.2.11-build/alsa-lib-1.2.11/include/local.h:32: included_from: Included from here.
alsa-lib-1.2.11-build/alsa-lib-1.2.11/src/topology/tplg_local.h:13: included_from: Included from here.
alsa-lib-1.2.11-build/alsa-lib-1.2.11/src/topology/save.c:18: included_from: Included from here.
alsa-lib-1.2.11-build/alsa-lib-1.2.11/include/local.h:222: included_from: Included from here.
alsa-lib-1.2.11-build/alsa-lib-1.2.11/src/topology/save.c:439:17: note: in expansion of macro 'list_for_each'
alsa-lib-1.2.11-build/alsa-lib-1.2.11/src/topology/save.c:85:39: note: in expansion of macro 'NEXT_CHUNK'
<built-in>: note: argument 2 of '__builtin_strcpy' must be non-null
#   94|   	if (pl > 0)
#   95|   		strcpy(s + l, pfx);
#   96|-> 	strcpy(s + l + pl, dst->printf_buf);
#   97|   	dst->dst = s;
#   98|   	dst->dst_len = t - 1;