Fixed misspellings

[ This is a backport to the 2.1 branch. ]

Fixed misspellings reported at [Bug #16437], for default gems.

(cherry picked from commit ruby/ruby@e68999c)

Author: nobu

test/test_config.rb

@@ -61,14 +61,14 @@ def test_s_parse_format
 [default1  default2]\t\t  # space is allowed in section name
           fo =b  ar       # space allowed in value
 [emptysection]
- [doller ]
+ [dollar ]
 foo=bar
 bar = $(foo)
 baz = 123$(default::bar)456${foo}798
 qux = ${baz}
 quxx = $qux.$qux
 __EOC__
-    assert_equal(['default', 'default1  default2', 'doller', 'emptysection', 'foo', 'foo\\bar'], c.sections.sort)
+    assert_equal(['default', 'default1  default2', 'dollar', 'emptysection', 'foo', 'foo\\bar'], c.sections.sort)
     assert_equal(['', 'a', 'bar', 'baz', 'd', 'dq', 'dq2', 'esc', 'foo\\bar', 'sq'], c['default'].keys.sort)
     assert_equal('c', c['default'][''])
     assert_equal('', c['default']['a'])
@@ -84,12 +84,12 @@ def test_s_parse_format
     assert_equal('baz', c['foo\\bar']['foo\\bar'])
     assert_equal('b  ar', c['default1  default2']['fo'])
 
-    # dolloer
-    assert_equal('bar', c['doller']['foo'])
-    assert_equal('bar', c['doller']['bar'])
-    assert_equal('123baz456bar798', c['doller']['baz'])
-    assert_equal('123baz456bar798', c['doller']['qux'])
-    assert_equal('123baz456bar798.123baz456bar798', c['doller']['quxx'])
+    # dollar
+    assert_equal('bar', c['dollar']['foo'])
+    assert_equal('bar', c['dollar']['bar'])
+    assert_equal('123baz456bar798', c['dollar']['baz'])
+    assert_equal('123baz456bar798', c['dollar']['qux'])
+    assert_equal('123baz456bar798.123baz456bar798', c['dollar']['quxx'])
 
     excn = assert_raise(OpenSSL::ConfigError) do
       OpenSSL::Config.parse("foo = $bar")