debian/changelog does not allow tabs

ChangeLog

@@ -1,3 +1,13 @@
+2016-12-08 15:02  
+
+	* [r455] ax_init_standard_project.m4, build-in-docker.sh:
+	  fixed debian changelog, rpm package signing and mageia update
+
+2016-12-08 10:00  
+
+	* [r454] ChangeLog, build-in-docker.sh:
+	  fixed update problem in mageia
+
 2016-12-07 20:34  
 
 	* [r453] bootstrap.sh, build-in-docker.sh:

ax_init_standard_project.m4

@@ -220,6 +220,8 @@ AC_DEFUN([AX_INIT_STANDARD_PROJECT], [
   SOURCE_DOWNLOAD="${SOURCE_DOWNLOAD:-${AUTHOR_URL}/downloads/${PACKAGE_NAME}}"
   AX_SUBST(PROJECT_URL)
   AX_SUBST(SOURCE_DOWNLOAD)
+  VENDOR=$((lsb_release -is 2>/dev/null || echo unknown) | tr ' ' '_')
+  AX_SUBST(VENDOR)
   DISTRO=$(lsb_release -sc 2>/dev/null || uname -s 2>/dev/null)
   AX_SUBST(DISTRO)
   ARCH=$((@<:@@<:@ $(uname -sm) =~ 64 @:>@@:>@ && echo amd64) || (@<:@@<:@ $(uname -sm) =~ 'i?86' @:>@@:>@ && echo i386 || uname -sm))