[ruby/English] Remove $IGNORECASE
`$=` has been obsolete and has no effect since 1.9. https://github.com/ruby/English/commit/121939695a
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@ -39,7 +39,6 @@
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# $PROCESS_ID:: $$
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# $PROCESS_ID:: $$
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# $CHILD_STATUS:: $?
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# $CHILD_STATUS:: $?
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# $LAST_MATCH_INFO:: $~
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# $LAST_MATCH_INFO:: $~
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# $IGNORECASE:: $=
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# $ARGV:: $*
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# $ARGV:: $*
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# $MATCH:: $&
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# $MATCH:: $&
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# $PREMATCH:: $`
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# $PREMATCH:: $`
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@ -151,9 +150,6 @@ alias $CHILD_STATUS $?
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# scope.
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# scope.
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alias $LAST_MATCH_INFO $~
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alias $LAST_MATCH_INFO $~
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# This variable is no longer effective. Deprecated.
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alias $IGNORECASE $=
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# An array of strings containing the command-line
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# An array of strings containing the command-line
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# options from the invocation of the program. Options
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# options from the invocation of the program. Options
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# used by the Ruby interpreter will have been
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# used by the Ruby interpreter will have been
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