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-rw-r--r--ext/etc/etc.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/ext/etc/etc.c b/ext/etc/etc.c
index 64b6fefab7f..6e7c278cfa1 100644
--- a/ext/etc/etc.c
+++ b/ext/etc/etc.c
@@ -693,7 +693,7 @@ etc_uname(VALUE obj)
/*
* Returns system configuration variable using sysconf().
*
- * _name_ should be a constant undef <code>Etc</code> which begins with <code>SC_</code>.
+ * _name_ should be a constant under <code>Etc</code> which begins with <code>SC_</code>.
*
* The return value is an integer or nil.
* nil means indefinite limit. (sysconf() returns -1 but errno is not set.)
@@ -730,7 +730,7 @@ etc_sysconf(VALUE obj, VALUE arg)
/*
* Returns system configuration variable using confstr().
*
- * _name_ should be a constant undef <code>Etc</code> which begins with <code>CS_</code>.
+ * _name_ should be a constant under <code>Etc</code> which begins with <code>CS_</code>.
*
* The return value is a string or nil.
* nil means no configuration-defined value. (confstr() returns 0 but errno is not set.)
@@ -777,11 +777,12 @@ etc_confstr(VALUE obj, VALUE arg)
/*
* Returns pathname configuration variable using fpathconf().
*
- * _name_ should be a constant undef <code>Etc</code> which begins with <code>PC_</code>.
+ * _name_ should be a constant under <code>Etc</code> which begins with <code>PC_</code>.
*
* The return value is an integer or nil.
* nil means indefinite limit. (fpathconf() returns -1 but errno is not set.)
*
+ * require 'etc'
* IO.pipe {|r, w|
* p w.pathconf(Etc::PC_PIPE_BUF) #=> 4096
* }