automation/eclair_analysis: avoid an ECLAIR warning about escaping

The parentheses in this regular expression should be doubly
escaped because they undergo expansion twice.

Signed-off-by: Nicola Vetrini <[email protected]>
[stefano: fix commit message]
Signed-off-by: Stefano Stabellini <[email protected]>
Acked-by: Stefano Stabellini <[email protected]>

Author: nvetrini

automation/eclair_analysis/ECLAIR/deviations.ecl

@@ -405,8 +405,8 @@ explicit comment indicating the fallthrough intention is present."
 #
 
 -doc_begin="printf()-like functions are allowed to use the variadic features provided by stdarg.h."
--config=MC3R1.R17.1,reports+={deliberate,"any_area(^.*va_list.*$&&context(ancestor_or_self(^.*printk\(.*\)$)))"}
--config=MC3R1.R17.1,reports+={deliberate,"any_area(^.*va_list.*$&&context(ancestor_or_self(^.*printf\(.*\)$)))"}
+-config=MC3R1.R17.1,reports+={deliberate,"any_area(^.*va_list.*$&&context(ancestor_or_self(^.*printk\\(.*\\)$)))"}
+-config=MC3R1.R17.1,reports+={deliberate,"any_area(^.*va_list.*$&&context(ancestor_or_self(^.*printf\\(.*\\)$)))"}
 -config=MC3R1.R17.1,reports+={deliberate,"any_area(^.*va_list.*$&&context(ancestor_or_self(name(panic)&&kind(function))))"}
 -config=MC3R1.R17.1,reports+={deliberate,"any_area(^.*va_list.*$&&context(ancestor_or_self(name(elf_call_log_callback)&&kind(function))))"}
 -config=MC3R1.R17.1,reports+={deliberate,"any_area(^.*va_list.*$&&context(ancestor_or_self(name(vprintk_common)&&kind(function))))"}