Merge branch 'dl/doc-config-camelcase'

A handful of multi-word configuration variable names in documentation that are spelled in all lowercase have been corrected to use the more canonical camelCase. * dl/doc-config-camelcase: index-format doc: camelCase core.excludesFile blame-options.txt: camelcase blame.blankBoundary i18n.txt: camel case and monospace "i18n.commitEncoding"