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-rw-r--r--doc/manual.cli6
1 files changed, 4 insertions, 2 deletions
diff --git a/doc/manual.cli b/doc/manual.cli
index 0de6d0b..2fa3248 100644
--- a/doc/manual.cli
+++ b/doc/manual.cli
@@ -621,8 +621,10 @@ one per line, in the form:
\
Whitespaces before \c{<name>}, around \c{=}, and after \c{<value>} as well as
-blank lines and lines that start with \c{#} are ignored. The \c{<value>} part
-as a whole can be single ('\ ') or double (\"\ \") quoted. For example:
+blank lines and lines that start with \c{#} are ignored. The \c{<name>} part
+must only contain capital alphabetic, numeric, and \c{_} characters. The
+\c{<value>} part as a whole can be single ('\ ') or double (\"\ \")
+quoted. For example:
\
DATABASE_HOST=192.168.0.1