test: fix search path for scripts

Fails when building in a sub-directory

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

test/api.sh

@@ -1,5 +1,8 @@
 #!/bin/sh
-. ./start.sh
+if [ x"${srcdir}" = x ]; then
+    srcdir=.
+fi
+. ${srcdir}/start.sh
 
 export MSG="no-openlog-apitest"
 

test/fwd.sh

@@ -1,6 +1,9 @@
 #!/bin/sh
 # Test FWD between two syslogd, second binds 127.0.0.2:5555
-. ./start.sh
+if [ x"${srcdir}" = x ]; then
+    srcdir=.
+fi
+. ${srcdir}/start.sh
 
 MSG="fwd and allow"
 

test/local.sh

@@ -1,5 +1,8 @@
 #!/bin/sh
-. ./start.sh
+if [ x"${srcdir}" = x ]; then
+    srcdir=.
+fi
+. ${srcdir}/start.sh
 
 MSG="foobar"
 MSG2="xyzzy"

test/mark.sh

@@ -1,6 +1,9 @@
 #!/bin/sh -e
 # Test '-- MARK --' in log, depends on fwd.sh
-. ./start.sh
+if [ x"${srcdir}" = x ]; then
+    srcdir=.
+fi
+. ${srcdir}/start.sh
 
 check_mark()
 {

test/remote.sh

@@ -1,5 +1,8 @@
 #!/bin/sh
-. ./start.sh
+if [ x"${srcdir}" = x ]; then
+    srcdir=.
+fi
+. ${srcdir}/start.sh
 
 MSG="kilroy"