docs: fix filter-branch subdir example for exotic repo names

diff --git a/config.mak.in b/config.mak.in
index 56343bab505b59289d0a5334a2a6ac840d3f10d1..961497305777fcbd67001fdae1335fcfe2910e88 100644 (file)
--- a/config.mak.in
+++ b/config.mak.in
@@ -27,7 +27,7 @@ VPATH = @srcdir@
 export exec_prefix mandir
 export srcdir VPATH
 
-ASCIIDOC8=@ASCIIDOC8@
+ASCIIDOC7=@ASCIIDOC7@
 NEEDS_SSL_WITH_CRYPTO=@NEEDS_SSL_WITH_CRYPTO@
 NO_OPENSSL=@NO_OPENSSL@
 NO_CURL=@NO_CURL@