Heredoc help (#372)

* Better way to format help

* improved formatting to patch previous

Co-authored-by: DiogoConstantino <diogoconstantino@ubuntu.com>

deb-get

@@ -2,31 +2,63 @@
 LC_ALL=C
 
 function usage() {
-  echo -e "Usage
+cat <<HELP
+  
+Usage
 
 deb-get {update | upgrade | show pkg | install pkg | reinstall pkg | remove pkg
-| purge pkg | search pkg | cache | clean | list | prettylist | csvlist | help | version}
+        | purge pkg | search pkg | cache | clean | list | prettylist | csvlist | help | version}
 
 deb-get provides a high-level commandline interface for the package management
 system to easily install and update packages published in 3rd party apt
 repositories or via direct download.
 
-update\n\tupdate is used to resynchronize the package index files from their sources.\n
-upgrade\n\tupgrade is used to install the newest versions of all packages currently installed on the system.\n
-install\n\tinstall is followed by one package desired for installation or upgrading.\n
-reinstall\n\treinstall is followed by one package desired for reinstallation.\n
-remove\n\tremove is identical to install except that packages are removed instead of installed.\n
-purge\n\tpurge is identical to remove except that packages are removed and purged (any configuration files are deleted too).\n
-clean\n\tclean clears out the local repository (/var/cache/deb-get) of retrieved package files.\n
-search\n\tsearch for the given regex(7) term(s) from the list of available packages supported by deb-get and display matches.\n
-show\n\tshow information about the given package including its install source and update mechanism.\n
-list\n\tlist the packages available via deb-get.\n
-prettylist\n\tmarkdown formatted list the packages available via deb-get. Use this to update README.md\n
-csvlist\n\tcsv formatted list the packages available via deb-get. Use this with 3rd party wrappers.\n
-cache\n\tlist the contents of the deb-get cache (/var/cache/deb-get)\n
-help\n\tshow this help\n
-version\n\tshow deb-get version\n
-"
+update
+    update is used to resynchronize the package index files from their sources.
+
+upgrade
+    upgrade is used to install the newest versions of all packages currently installed on the system.
+
+install
+    install is followed by one package desired for installation or upgrading.
+
+reinstall
+    reinstall is followed by one package desired for reinstallation.
+
+remove
+    remove is identical to install except that packages are removed instead of installed.
+
+purge
+    purge is identical to remove except that packages are removed and purged (any configuration files are deleted too).
+
+clean
+    clean clears out the local repository (/var/cache/deb-get) of retrieved package files.
+
+search
+    search for the given regex(7) term(s) from the list of available packages supported by deb-get and display matches.
+
+show
+    show information about the given package including its install source and update mechanism.
+
+list
+    list the packages available via deb-get.
+
+prettylist
+    markdown formatted list the packages available via deb-get. Use this to update README.md
+
+csvlist
+    csv formatted list the packages available via deb-get. Use this with 3rd party wrappers.
+
+cache
+    list the contents of the deb-get cache (/var/cache/deb-get)
+
+help
+    show this help
+
+version
+    show deb-get version
+
+HELP
 }
 
 # https://github.com/wimpysworld/deb-get/issues/126