test: copyright information updates

Files in test directories had only copyright of a single individual,
of which code was adapted here as a base of the test system.
Since then many Notmuch Developers have contributed to the test
system, which is now acknowledged with a constant string in some
of the test files.

The README file in test directory instructed new files contain a
copyright notice, but that has never been done (and it is also not
needed). To simplify things a bit (and lessen confusion) this
instruction is now removed.

As a side enchangement, all of the 3 entries in the whole source
tree cd'ing to `dirname` of "$0" now uses syntax cd "$(dirname "$0")".
This makes these particular lines work when current working directory
is e.g. /c/Program Files/notmuch/test/.
(Probably it would fail elsewhere, though.)

performance-test/notmuch-memory-test

@@ -3,6 +3,7 @@
 # Run tests
 #
 # Copyright (c) 2005 Junio C Hamano
+# Copyright (c) 2010 Notmuch Developers
 #
 # Adapted from a Makefile to a shell script by Carl Worth (2010)
 
@@ -14,7 +15,7 @@ if [ ${BASH_VERSINFO[0]} -lt 4 ]; then
     exit 1
 fi
 
-cd $(dirname "$0")
+cd "$(dirname "$0")"
 
 for test in M*.sh; do
     ./"$test" "$@"

performance-test/notmuch-time-test

@@ -3,6 +3,7 @@
 # Run tests
 #
 # Copyright (c) 2005 Junio C Hamano
+# Copyright (c) 2010 Notmuch Developers
 #
 # Adapted from a Makefile to a shell script by Carl Worth (2010)
 
@@ -14,7 +15,7 @@ if [ ${BASH_VERSINFO[0]} -lt 4 ]; then
     exit 1
 fi
 
-cd $(dirname "$0")
+cd "$(dirname "$0")"
 
 for test in T*.sh; do
     ./"$test" "$@"

test/README

@@ -145,13 +145,9 @@ Tddd-testname.sh where 'ddd' is three digits and 'testname' the "bare"
 name of your test. Tests will be run in order the 'ddd' part determines.
 
 The test script should start with the standard "#!/usr/bin/env bash"
-with copyright notices, and an assignment to variable 'test_description',
-like this:
+and an assignment to variable 'test_description', like this:
 
 	#!/usr/bin/env bash
-	#
-	# Copyright (c) 2005 Junio C Hamano
-	#
 
 	test_description='xxx test (option --frotz)
 

test/notmuch-test

@@ -3,6 +3,7 @@
 # Run tests
 #
 # Copyright (c) 2005 Junio C Hamano
+# Copyright (c) 2010 Notmuch Developers
 #
 # Adapted from a Makefile to a shell script by Carl Worth (2010)
 
@@ -14,7 +15,7 @@ if [ ${BASH_VERSINFO[0]} -lt 4 ]; then
     exit 1
 fi
 
-cd $(dirname "$0")
+cd "$(dirname "$0")"
 
 TESTS=${NOTMUCH_TESTS:-`echo T[0-9][0-9][0-9]-*.sh`}
 

test/test-lib-common.sh

@@ -1,5 +1,6 @@
 #
 # Copyright (c) 2005 Junio C Hamano
+# Copyright (c) 2010 Notmuch Developers
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

test/test-lib.sh

@@ -1,5 +1,6 @@
 #
 # Copyright (c) 2005 Junio C Hamano
+# Copyright (c) 2010 Notmuch Developers
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by