COMMIT Clean up and expand slightly spec for Kernel#system using "sh" when shell characters are present.	http://github.com/rubyspec/rubyspec/commit/7592275eac39562289976725f4dc2b992aa0ce69

===================================================================
+++ 20110711T041415Z
@@ 15934 @@
 - returns false when command execution fails
 - returns false when the command has a non-zero exit status
 - does not write to stderr when it can't find a command
+- executes with `sh` if the command contains shell characters
+- ignores SHELL env var and always uses `sh`
 - is a private method
 - expands shell variables when given a single string argument
 - does not expand shell variables when given multiples arguments
@@ 38367 @@
 - returns false when command execution fails
 - returns false when the command has a non-zero exit status
 - does not write to stderr when it can't find a command
+- executes with `sh` if the command contains shell characters
+- ignores SHELL env var and always uses `sh`
 - is a private method
 - expands shell variables when given a single string argument
 - does not expand shell variables when given multiples arguments
@@ 42991 @@
  <n>)
 An exception occurred during: Mock.verify_count
 Process.setrlimit and Process.getrlimit coerces arguments to Integers FAILED
+Mock '#<MockIntObject:0x<address> @value=4, @calls=0>' expected to receive 'to_int' at least 1 times
 but received it 0 times
 /var/lib/chkbuild/tmp/build/ruby-1.8.6-o3/<buildtime>/mspec/lib/mspec/expectations/expectations.rb:15:in `fail_with'
 /var/lib/chkbuild/tmp/build/ruby-1.8.6-o3/<buildtime>/mspec/lib/mspec/mocks/mock.rb:110:in `verify_count'
@@ 56585 @@
 
  <n>)
 ConditionVariable#broadcast releases all threads waiting in line for this resource ERROR
+ThreadError: Thread#join: deadlock 0xf79c2540 - mutual join(0xf78c3348)
 /var/lib/chkbuild/tmp/build/ruby-1.8.6-o3/<buildtime>/rubyspec/library/conditionvariable/broadcast_spec.rb:55:in `join'
 /var/lib/chkbuild/tmp/build/ruby-1.8.6-o3/<buildtime>/rubyspec/library/conditionvariable/broadcast_spec.rb:55
 /var/lib/chkbuild/tmp/build/ruby-1.8.6-o3/<buildtime>/rubyspec/library/conditionvariable/broadcast_spec.rb:55:in `each'

===================================================================
--- 20110709T041853Z
@@ 15934 @@
 - returns false when command execution fails
 - returns false when the command has a non-zero exit status
 - does not write to stderr when it can't find a command
-- uses /bin/sh if freaky shit is in the command
 - is a private method
 - expands shell variables when given a single string argument
 - does not expand shell variables when given multiples arguments
@@ 38366 @@
 - returns false when command execution fails
 - returns false when the command has a non-zero exit status
 - does not write to stderr when it can't find a command
-- uses /bin/sh if freaky shit is in the command
 - is a private method
 - expands shell variables when given a single string argument
 - does not expand shell variables when given multiples arguments
@@ 42989 @@
  <n>)
 An exception occurred during: Mock.verify_count
 Process.setrlimit and Process.getrlimit coerces arguments to Integers FAILED
-Mock '#<MockIntObject:0x<address> @value=18446744073709551615, @calls=0>' expected to receive 'to_int' at least 1 times
 but received it 0 times
 /var/lib/chkbuild/tmp/build/ruby-1.8.6-o3/<buildtime>/mspec/lib/mspec/expectations/expectations.rb:15:in `fail_with'
 /var/lib/chkbuild/tmp/build/ruby-1.8.6-o3/<buildtime>/mspec/lib/mspec/mocks/mock.rb:110:in `verify_count'
@@ 56583 @@
 
  <n>)
 ConditionVariable#broadcast releases all threads waiting in line for this resource ERROR
-ThreadError: Thread#join: deadlock 0xf7f28538 - mutual join(0xf7e29310)
 /var/lib/chkbuild/tmp/build/ruby-1.8.6-o3/<buildtime>/rubyspec/library/conditionvariable/broadcast_spec.rb:55:in `join'
 /var/lib/chkbuild/tmp/build/ruby-1.8.6-o3/<buildtime>/rubyspec/library/conditionvariable/broadcast_spec.rb:55
 /var/lib/chkbuild/tmp/build/ruby-1.8.6-o3/<buildtime>/rubyspec/library/conditionvariable/broadcast_spec.rb:55:in `each'