[gtk-doc] docs: fix the example for other build systems

[Stefan Kost <stefkost src gnome org>]

commit 7668d62f93e3882877e4549091110159a3df9e66
Author: Stefan Sauer <ensonic users sf net>
Date:   Mon Jan 19 16:43:17 2015 +0100

    docs: fix the example for other build systems
    
    It is gtkdoc-mkdb that takes the --source-dir flag.

 help/manual/C/index.docbook |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/help/manual/C/index.docbook b/help/manual/C/index.docbook
index 50d0ce7..ac614b2 100644
--- a/help/manual/C/index.docbook
+++ b/help/manual/C/index.docbook
@@ -606,9 +606,9 @@ make
           <programlisting><![CDATA[
 DOC_MODULE=meep
 // sources have changed
-gtkdoc-scan --module=$(DOC_MODULE) --source-dir=...
+gtkdoc-scan --module=$(DOC_MODULE) <source-dir>
 gtkdoc-scangobj --module=$(DOC_MODULE)
-gtkdoc-mkdb --module=$(DOC_MODULE) --output-format=xml
+gtkdoc-mkdb --module=$(DOC_MODULE) --output-format=xml --source-dir=<source-dir>
 // xml files have changed
 mkdir html
 cd html && gtkdoc-mkhtml $(DOC_MODULE) ../meep-docs.xml