Use a funnier charset name

expl.sh

@@ -8,17 +8,17 @@ set -e
 # │   └── fake_exe
 # └── fake_exe
 #     ├── gconv-modules
-#     └── UTF-16.so
+#     └── fake_module.so
 
 mkdir -p 'GCONV_PATH=.'
 touch 'GCONV_PATH=./fake_exe'
 chmod +x 'GCONV_PATH=./fake_exe'
 
 mkdir -p fake_exe
-echo 'module INTERNAL UTF-16// UTF-16 1' > fake_exe/gconv-modules
+echo 'module INTERNAL banana// fake_module 1' > fake_exe/gconv-modules
 
 gcc -o helper helper.c
-gcc -fPIC -shared -o fake_exe/UTF-16.so fake_module.c
+gcc -fPIC -shared -o fake_exe/fake_module.so fake_module.c
 
 set +e
 env PATH="$(pwd):$PATH" ./helper

helper.c

@@ -21,9 +21,11 @@ int main(void) {
 		// validate_environment_variable() fails, calling g_printerr().
 		"SHELL=x",
 
-		// An encoding that is not UTF-8, so g_printerr() invokes a loadable
-		// module (fake_module.c) for string conversion from GCONV_PATH.
-		"CHARSET=UTF-16",
+		// An encoding that is not UTF-8 (even made up), so g_printerr() invokes
+		// a loadable module for string conversion as specified by the config
+		// file $GCONV_PATH/gconv-modules, which in this case will point to
+		// fake_module.so compiled from fake_module.c.
+		"CHARSET=banana",
 		NULL
 	};