Fix compile warning by using Promise's then() style of two arguments instead of a separate catch() method.
Fix compile warning by using Promise's then() style of two arguments instead of a separate catch() method.

javascript/crypto/e2e/scheme/rsa_sign.js:71: WARNING - Keywords and reserved words are not allowed as unquoted property names in older versions of JavaScript. If you are targeting newer versions of JavaScript, set the appropriate language_in option.
).catch (
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=74711734

sirdarckcat/end-to-end,rcchan/end-to-end,diracdeltas/end-to-end-1,kbsriram/end-to-end,dlg-yahoo/temp,dconnolly/google-end-to-end,adhintz/end-to-end,dconnolly/yahoo-end-to-end,Yiyuan17/end-to-end,sirdarckcat/end-to-end,kbsriram/end-to-end,adhintz/end-to-end,01022499/end-to-end,Yiyuan17/end-to-end,google/end-to-end,kaderud/end-to-end,sirdarckcat/end-to-end,rcchan/end-to-end,koto/end-to-end-1,01022499/end-to-end,diracdeltas/end-to-end,diracdeltas/end-to-end-2,Endika/end-to-end,jprucnal/end-to-end,yahoo/end-to-end,postfix/end-to-end,Endika/end-to-end,dconnolly/google-end-to-end,diracdeltas/end-to-end-2,chenhuang511/end-to-end,postfix/end-to-end,postfix/end-to-end,rcchan/end-to-end,jprucnal/end-to-end,jw0201/end-to-end,diracdeltas/end-to-end-2,digideskio/end-to-end,01022499/end-to-end,yahoo/end-to-end,kaderud/end-to-end,chenhuang511/end-to-end,Endika/end-to-end,dconnolly/yahoo-end-to-end,diracdeltas/end-to-end-1,koto/end-to-end-1,koto/end-to-end-1,microlv/end-to-end,dconnolly/google-end-to-end,microlv/end-to-end,atsuyim/end-to-end-1,sirdarckcat/end-to-end,chenhuang511/end-to-end,coruus/e2e-g2y-cryptolib,digideskio/end-to-end,google/end-to-end,atsuyim/end-to-end-1,coruus/e2e-g2y-cryptolib,coruus/e2e-g2y-cryptolib,microlv/end-to-end,Endika/end-to-end,diracdeltas/end-to-end-1,digideskio/end-to-end,koto/end-to-end-1,microlv/end-to-end,atsuyim/end-to-end-1,adhintz/end-to-end,dconnolly/google-end-to-end,koto/end-to-end-1,jw0201/end-to-end,yahoo/end-to-end,jw0201/end-to-end,google/end-to-end,kaderud/end-to-end,jprucnal/end-to-end,adhintz/end-to-end,diracdeltas/end-to-end-1,yahoo/end-to-end,dconnolly/yahoo-end-to-end,Endika/end-to-end,diracdeltas/end-to-end,google/end-to-end,kaderud/end-to-end,coruus/e2e-g2y-cryptolib,kbsriram/end-to-end,kbsriram/end-to-end,dconnolly/yahoo-end-to-end,digideskio/end-to-end,rcchan/end-to-end,dlg-yahoo/temp,Yiyuan17/end-to-end,jw0201/end-to-end,chenhuang511/end-to-end,sirdarckcat/end-to-end,adhintz/end-to-end,jprucnal/end-to-end,google/end-to-end,atsuyim/end-to-end-1,diracdeltas/end-to-end,postfix/end-to-end,dlg-yahoo/temp,diracdeltas/end-to-end-2,Yiyuan17/end-to-end,kbsriram/end-to-end