Use caller with length to reduce unused strings

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60288 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/ipaddr.rb b/lib/ipaddr.rb
index ecf28ebb25..0f3a5e2878 100644
--- a/lib/ipaddr.rb
+++ b/lib/ipaddr.rb
@@ -310,7 +310,7 @@ class IPAddr
 
   # Returns true if the ipaddr is an IPv4-compatible IPv6 address.
   def ipv4_compat?
-    warn "#{caller(1)[0]}: warning: IPAddr\##{__callee__} is obsolete" if $VERBOSE
+    warn "#{caller(1, 1)[0]}: warning: IPAddr\##{__callee__} is obsolete" if $VERBOSE
     _ipv4_compat?
   end
 
@@ -336,7 +336,7 @@ class IPAddr
   # Returns a new ipaddr built by converting the native IPv4 address
   # into an IPv4-compatible IPv6 address.
   def ipv4_compat
-    warn "#{caller(1)[0]}: warning: IPAddr\##{__callee__} is obsolete" if $VERBOSE
+    warn "#{caller(1, 1)[0]}: warning: IPAddr\##{__callee__} is obsolete" if $VERBOSE
     if !ipv4?
       raise InvalidAddressError, "not an IPv4 address"
     end