refactor/lint: Add ignored suggestions to an array

This avoids duplicating the codes between command and comments.

test/lint/lint-shell.sh

@@ -22,27 +22,29 @@ if ! command -v shellcheck > /dev/null; then
 fi
 
 # Disabled warnings:
-# SC1087: Use braces when expanding arrays, e.g. ${array[idx]} (or ${var}[.. to quiet).
-# SC1117: Backslash is literal in "\.". Prefer explicit escaping: "\\.".
-# SC2001: See if you can use ${variable//search/replace} instead.
-# SC2004: $/${} is unnecessary on arithmetic variables.
-# SC2005: Useless echo? Instead of 'echo $(cmd)', just use 'cmd'.
-# SC2006: Use $(..) instead of legacy `..`.
-# SC2016: Expressions don't expand in single quotes, use double quotes for that.
-# SC2028: echo won't expand escape sequences. Consider printf.
-# SC2046: Quote this to prevent word splitting.
-# SC2048: Use "$@" (with quotes) to prevent whitespace problems.
-# SC2066: Since you double quoted this, it will not word split, and the loop will only run once.
-# SC2086: Double quote to prevent globbing and word splitting.
-# SC2116: Useless echo? Instead of 'cmd $(echo foo)', just use 'cmd foo'.
-# SC2148: Tips depend on target shell and yours is unknown. Add a shebang.
-# SC2162: read without -r will mangle backslashes.
-# SC2166: Prefer [ p ] && [ q ] as [ p -a q ] is not well defined.
-# SC2166: Prefer [ p ] || [ q ] as [ p -o q ] is not well defined.
-# SC2181: Check exit code directly with e.g. 'if mycmd;', not indirectly with $?.
-# SC2206: Quote to prevent word splitting, or split robustly with mapfile or read -a.
-# SC2207: Prefer mapfile or read -a to split command output (or quote to avoid splitting).
-# SC2230: which is non-standard. Use builtin 'command -v' instead.
-# SC2236: Don't force -n instead of ! -z.
-shellcheck -e SC1087,SC1117,SC2001,SC2004,SC2005,SC2006,SC2016,SC2028,SC2046,SC2048,SC2066,SC2086,SC2116,SC2148,SC2162,SC2166,SC2181,SC2206,SC2207,SC2230,SC2236 \
+disabled=(
+    SC1087 # Use braces when expanding arrays, e.g. ${array[idx]} (or ${var}[.. to quiet).
+    SC1117 # Backslash is literal in "\.". Prefer explicit escaping: "\\.".
+    SC2001 # See if you can use ${variable//search/replace} instead.
+    SC2004 # $/${} is unnecessary on arithmetic variables.
+    SC2005 # Useless echo? Instead of 'echo $(cmd)', just use 'cmd'.
+    SC2006 # Use $(..) instead of legacy `..`.
+    SC2016 # Expressions don't expand in single quotes, use double quotes for that.
+    SC2028 # echo won't expand escape sequences. Consider printf.
+    SC2046 # Quote this to prevent word splitting.
+    SC2048 # Use "$@" (with quotes) to prevent whitespace problems.
+    SC2066 # Since you double quoted this, it will not word split, and the loop will only run once.
+    SC2086 # Double quote to prevent globbing and word splitting.
+    SC2116 # Useless echo? Instead of 'cmd $(echo foo)', just use 'cmd foo'.
+    SC2148 # Tips depend on target shell and yours is unknown. Add a shebang.
+    SC2162 # read without -r will mangle backslashes.
+    SC2166 # Prefer [ p ] && [ q ] as [ p -a q ] is not well defined.
+    SC2166 # Prefer [ p ] || [ q ] as [ p -o q ] is not well defined.
+    SC2181 # Check exit code directly with e.g. 'if mycmd;', not indirectly with $?.
+    SC2206 # Quote to prevent word splitting, or split robustly with mapfile or read -a.
+    SC2207 # Prefer mapfile or read -a to split command output (or quote to avoid splitting).
+    SC2230 # which is non-standard. Use builtin 'command -v' instead.
+    SC2236 # Don't force -n instead of ! -z.
+)
+shellcheck -e "$(IFS=","; echo "${disabled[*]}")" \
     $(git ls-files -- "*.sh" | grep -vE 'src/(secp256k1|univalue)/')