cp: example using -t (#9706)

* Add example using -t

Think of:

    find . -name '*foobar*' -type f -print0 | xargs -0 cp -r DEST_DIR

All of the files passed by the pipe will remain in DEST_DIR

* cp: add missing ":" in description

* cp: fix typo

* Update pages/common/cp.md

* Fix typo

pages/common/cp.md

@@ -26,3 +26,7 @@
 - Follow symbolic links before copying:
 
 `cp -L {{link}} {{path/to/target_directory}}`
+
+- Use the first argument as the destination directory (useful for `xargs ... | cp -t <DEST_DIR>`):
+
+`cp -t {{path/to/target_directory}} {{path/to/file_or_directory1 path/to/file_or_directory2 ...}}`