X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=doc%2Fman1%2Fnotmuch.rst;h=48351588a3eafc7a20ed69161fa2ae44485c7486;hb=dd9112e7d8e89e8566b90379f5f3b1461a2d2845;hp=d2cd8da55cb99e0d20792fdbe326e415bd0109f7;hpb=c8fc3d1428d86a653a23a5f8c32ea8ac52c8f160;p=notmuch

diff --git a/doc/man1/notmuch.rst b/doc/man1/notmuch.rst
index d2cd8da5..48351588 100644
--- a/doc/man1/notmuch.rst
+++ b/doc/man1/notmuch.rst
@@ -48,7 +48,9 @@ Supported global options for ``notmuch`` include
 
 ``--config=FILE``
     Specify the configuration file to use. This overrides any
-    configuration file specified by ${NOTMUCH\_CONFIG}.
+    configuration file specified by ${NOTMUCH\_CONFIG}. The empty
+    string is a permitted and sometimes useful value of *FILE*, which
+    tells ``notmuch`` to use only configuration metadata from the database.
 
 ``--uuid=HEX``
     Enforce that the database UUID (a unique identifier which persists
@@ -128,9 +130,9 @@ OPTION SYNTAX
 -------------
 
 All options accepting an argument can be used with '=' or ':' as a
-separator. For the cases where it's not ambiguous (in particular
-excluding boolean options), a space can also be used. The following
-are all equivalent:
+separator. Except for boolean options (which would be ambiguous), a
+space can also be used as a separator. The following are all
+equivalent:
 
 ::