Handle + in notmuch queries (#233)

share/mutt-wizard.muttrc

@@ -61,7 +61,7 @@ bind editor <Tab> complete-query
 macro index,pager a "|abook --add-email\n" 'add sender to abook'
 macro index \Cr "T~U<enter><tag-prefix><clear-flag>N<untag-pattern>.<enter>" "mark all messages as read"
 macro index O "<shell-escape>mailsync -Va<enter>" "run offlineimap to sync all mail"
-macro index \Cf "<enter-command>unset wait_key<enter><shell-escape>read -p 'Enter a search term to find with notmuch: ' x; echo \$x >~/.cache/mutt_terms<enter><limit>~i \"\`notmuch search --output=messages \$(cat ~/.cache/mutt_terms) | head -n 600 | perl -le '@a=<>;chomp@a;s/\^id:// for@a;$,=\"|\";print@a'\`\"<enter>" "show only messages matching a notmuch pattern"
+macro index \Cf "<enter-command>unset wait_key<enter><shell-escape>read -p 'Enter a search term to find with notmuch: ' x; echo \$x >~/.cache/mutt_terms<enter><limit>~i \"\`notmuch search --output=messages \$(cat ~/.cache/mutt_terms) | head -n 600 | perl -le '@a=<>;s/\^id:// for@a;$,=\"|\";print@a' | perl -le '@a=<>; chomp@a; s/\\+/\\\\+/ for@a;print@a' \`\"<enter>" "show only messages matching a notmuch pattern"
 macro index A "<limit>all\n" "show all messages (undo limit)"
 
 # Sidebar mappings