Add an example of how to avoid this warning using arrays

SC2046.md

@@ -29,4 +29,16 @@ In rare cases you actually want word splitting, such as in
 
     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`.
+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:
+
+    args=( $(pkg-config --libs openssl) )
+    gcc "${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