Updated SC2046 (markdown)

SC2046.md

@@ -27,24 +27,15 @@ If the command substitution outputs multiple pieces of data, use a loop instead.
 
 In rare cases you actually want word splitting, such as in
 
+    # shellcheck disable=SC2046
     gcc $(pkg-config --libs openssl) client.c
 
-This is because `pkg-config` outputs `-lssl -lcrypto`, which you want to break up by spaces into `-lssl` and `-lcrypto`. An alternative is to put the variables to an array and expand it:
+This is because `pkg-config` outputs `-lssl -lcrypto`, which you want to break up by spaces into `-lssl` and `-lcrypto`.
 
-    # For bash
+A bash alternative in these cases is to use `read -a` for words or `mapfile` for lines. ksh can also use `read -a`, or a `while read` loop for lines. In this case, since `pkg-config` outputs words, you could use:
-    mapfile -t args < <(pkg-config --libs openssl)
 
-    # For ksh
+    # Read words into an array in bash and ksh
-    pkg-config --libs openssl | while IFS="" read -r line; do array+=("$line"); done
+    read -ra args < <(pkg-config --libs openssl)
     
     # expand args
     gcc "${args[@]}" client.c
-
-The power of using an array becomes evident when you want to combine, for example, the command result with user-provided arguments:
-
-    compile () {
-        args=( "$(pkg-config --libs openssl)" "${@}" )
-        gcc "${args[@]}" client.c
-    }
-    compile -DDEBUG
-    + gcc -lssl -lcrypto -DDEBUG client.c