argument: Fix help output spacing

Some of the help text lines are missing spaces between words. This
commit makes the formatting more consistent such that spaces are always
placed at the end of lines that do not contain a newline character. Now
we have the correct spacing in the help output.

Change-Id: I01d3f25c95f178afd02263ccc05c664a72bd479d
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/argument.cpp b/argument.cpp
index f37524e..3493b14 100644
--- a/argument.cpp
+++ b/argument.cpp
@@ -91,18 +91,18 @@
     std::cerr << "Usage: " << argv[0] << " options\n";
     std::cerr << "Options:\n";
     std::cerr << " --help                           Print this menu\n";
-    std::cerr << " --path=<Dbus Object path>        Dbus Object path."
-                     " Ex: /xyz/openbmc_project/state/watchdog/host0\n";
-    std::cerr << " --service=<Dbus Service name>    Dbus Service name."
-                     " Ex: xyz.openbmc_project.State.Watchdog.Host\n";
-    std::cerr << " [--target=<systemd unit>]        Systemd unit to be called"
-                     " on timeout for all actions but NONE. Deprecated, use"
+    std::cerr << " --path=<Dbus Object path>        Dbus Object path. "
+                     "Ex: /xyz/openbmc_project/state/watchdog/host0\n";
+    std::cerr << " --service=<Dbus Service name>    Dbus Service name. "
+                     "Ex: xyz.openbmc_project.State.Watchdog.Host\n";
+    std::cerr << " [--target=<systemd unit>]        Systemd unit to be called "
+                     "on timeout for all actions but NONE. Deprecated, use "
                      "--action_target instead.\n";
-    std::cerr << " [--action_target=<action>=<systemd unit>] Map of action to"
-                     "systemd unit to be called on timeout if that action is"
+    std::cerr << " [--action_target=<action>=<systemd unit>] Map of action to "
+                     "systemd unit to be called on timeout if that action is "
                      "set for ExpireAction when the timer expires.\n";
-    std::cerr << " [--continue]                     Continue daemon after"
-                     " watchdog timeout.\n";
+    std::cerr << " [--continue]                     Continue daemon after "
+                     "watchdog timeout.\n";
 }
 } // namespace watchdog
 } // namespace phosphor