svnrdump produce a strange dump file

  Hello,

I have a Subversion 1.6.17 server running on Debian Linux and access
through HTTPS.

I used both Subversion 1.8.10 and Subversion 1.9.2 to produce a partial
dump of the repository:

svnrdump dump -r 51686:77787
https://myhost/subversion/repository/PROJECT/trunk/amodule | gzip >
amodule.dump.gz

I got a version 3 dump which has the following trouble: almost all files
content begins with a strange "SVN" binary sequence.

Here is an excerpt of the dump itself for such a file:

Node-path: trunk/amodule/pom.xml
Node-kind: file
Node-action: add
Prop-delta: true
Prop-content-length: 10
Text-delta: true
Text-content-length: 3271
Text-content-md5: 1e6f17c85e486bfec9b0f71291cad435
Content-length: 3281

PROPS-END
SVN^@^@^@<99>9^C<99>9<80><99>9<project xmlns="
http://maven.apache.org/POM/4.0.0" xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <parent>

As a result, load operation fails as Text-content-md5 cannot be verified.

According to documentation svnrdump is compatible with Subversion server
1.4 for dump. What is wrong ?

Thank you in advance for your help

-- 
Yves Martin