Fix various typos found by codepsell

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

test/depserv.sh

@@ -1,5 +1,5 @@
 #!/bin/sh
-# Verify handling of dependant services, bug #314
+# Verify handling of dependent services, bug #314
 # Two services: foo and bar, where bar depends on foo:
 #
 #   - bar must not start until foo is ready

test/notify.sh

@@ -71,7 +71,7 @@ test_one()
     assert_status "serv" "running"
     assert_cond "service/serv/ready"
 
-    # Issue #343; pidfile.so inadvertedly marked systemd services as
+    # Issue #343; pidfile.so inadvertently marked systemd services as
     # 'started' when they created their PID file.  The serv test daemon
     # waits 3 sec between pidfile and notify to trigger this bug.
     if [ "$type" != "pid" ]; then

test/run-task-tricks.sh

@@ -1,7 +1,7 @@
 #!/bin/sh
 #
 # Verifies that a run task can call initctl at bootstrap and runlevel 2,
-# without blocking, performing serveral tasks:
+# without blocking, performing several tasks:
 #
 #  1. Query running services
 #  2. Stop/Start a running service