Adjust tab/space to mixed mode so we mostly preserve what it was before...

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1773626 13f79535-47bb-0310-9956-ffa450edef68

.settings/org.eclipse.jdt.core.prefs

@@ -386,7 +386,7 @@ org.eclipse.jdt.core.formatter.never_indent_line_comments_on_first_column=false
 org.eclipse.jdt.core.formatter.number_of_blank_lines_at_beginning_of_method_body=0
 org.eclipse.jdt.core.formatter.number_of_empty_lines_to_preserve=1
 org.eclipse.jdt.core.formatter.put_empty_statement_on_new_line=true
-org.eclipse.jdt.core.formatter.tabulation.char=space
+org.eclipse.jdt.core.formatter.tabulation.char=mixed
 org.eclipse.jdt.core.formatter.tabulation.size=4
 org.eclipse.jdt.core.formatter.use_on_off_tags=false
 org.eclipse.jdt.core.formatter.use_tabs_only_for_leading_indentations=false