test: Add crc32c exception to various linters and generation scripts

(cherry picked from commit bitcoin/bitcoin@3a037d0067)

Zcash:
- Excludes linters and scripts we don't have.
- Re-adds leveldb to lint-includes.sh because of a false positive.

test/lint/lint-include-guards.sh

@@ -12,7 +12,7 @@ HEADER_ID_PREFIX="ZCASH_"
 HEADER_ID_PREFIX_UPSTREAM="BITCOIN_"
 HEADER_ID_SUFFIX="_H"
 
-REGEXP_EXCLUDE_FILES_WITH_PREFIX="src/(crypto/ctaes/|leveldb/|secp256k1/|tinyformat.h|univalue/)"
+REGEXP_EXCLUDE_FILES_WITH_PREFIX="src/(crypto/ctaes/|leveldb/|crc32c/|secp256k1/|tinyformat.h|univalue/)"
 
 EXIT_CODE=0
 for HEADER_FILE in $(git ls-files -- "*.h" | grep -vE "^${REGEXP_EXCLUDE_FILES_WITH_PREFIX}")

test/lint/lint-includes.sh

@@ -9,12 +9,13 @@
 # Guard against accidental introduction of new Boost dependencies.
 
 export LC_ALL=C
+IGNORE_REGEXP="/(leveldb|crc32c)/"
 
 # cd to root folder of git repo for git ls-files to work properly
 cd "$(dirname $0)/../.." || exit 1
 
 filter_suffix() {
-    git ls-files | grep -E "^src/.*\.${1}"'$'
+    git ls-files | grep -E "^src/.*\.${1}"'$' | grep -Ev "${IGNORE_REGEXP}"
 }
 
 EXIT_CODE=0

test/lint/lint-python-utf8-encoding.sh

@@ -10,7 +10,7 @@
 
 export LC_ALL=C
 EXIT_CODE=0
-OUTPUT=$(git grep " open(" -- "*.py" | grep -vE "encoding=.(ascii|utf8|utf-8)." | grep -vE "open\([^,]*, ['\"][^'\"]*b[^'\"]*['\"]")
+OUTPUT=$(git grep " open(" -- "*.py" ":(exclude)src/crc32c/" | grep -vE "encoding=.(ascii|utf8|utf-8)." | grep -vE "open\([^,]*, ['\"][^'\"]*b[^'\"]*['\"]")
 if [[ ${OUTPUT} != "" ]]; then
     echo "Python's open(...) seems to be used to open text files without explicitly"
     echo "specifying encoding=\"utf8\":"