Merge branch 'jn/maint-gitweb-invalid-regexp' into maint

diff --git a/Documentation/config.txt b/Documentation/config.txt
index 04f5e19dc343d07d48f17e266fa557896f68d43d..0e1168c06661448d0757ceb3a7c2155a3dd42809 100644 (file)
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -12,8 +12,9 @@ The configuration variables are used by both the git plumbing
 and the porcelains. The variables are divided into sections, wherein
 the fully qualified variable name of the variable itself is the last
 dot-separated segment and the section name is everything before the last
-dot. The variable names are case-insensitive and only alphanumeric
-characters are allowed. Some variables may appear multiple times.
+dot. The variable names are case-insensitive, allow only alphanumeric
+characters and `-`, and must start with an alphabetic character.  Some
+variables may appear multiple times.
 
 Syntax
 ~~~~~~
@@ -54,9 +55,10 @@ All the other lines (and the remainder of the line after the section
 header) are recognized as setting variables, in the form
 'name = value'.  If there is no equal sign on the line, the entire line
 is taken as 'name' and the variable is recognized as boolean "true".
-The variable names are case-insensitive and only alphanumeric
-characters and `-` are allowed.  There can be more than one value
-for a given variable; we say then that variable is multivalued.
+The variable names are case-insensitive, allow only alphanumeric characters
+and `-`, and must start with an alphabetic character.  There can be more
+than one value for a given variable; we say then that the variable is
+multivalued.
 
 Leading and trailing whitespace in a variable value is discarded.
 Internal whitespace within a variable value is retained verbatim.
@@ -1258,9 +1260,10 @@ help.autocorrect::
        This is the default.
 
 http.proxy::
-       Override the HTTP proxy, normally configured using the 'http_proxy'
-       environment variable (see linkgit:curl[1]).  This can be overridden
-       on a per-remote basis; see remote.<name>.proxy
+       Override the HTTP proxy, normally configured using the 'http_proxy',
+       'https_proxy', and 'all_proxy' environment variables (see
+       `curl(1)`).  This can be overridden on a per-remote basis; see
+       remote.<name>.proxy
 
 http.cookiefile::
        File containing previously stored cookie lines which should be used
@@ -1786,7 +1789,8 @@ rerere.enabled::
        conflict hunks can be resolved automatically, should they be
        encountered again.  By default, linkgit:git-rerere[1] is
        enabled if there is an `rr-cache` directory under the
-       `$GIT_DIR`.
+       `$GIT_DIR`, e.g. if "rerere" was previously used in the
+       repository.
 
 sendemail.identity::
        A configuration identity. When given, causes values in the