tests: renamed helper to avoid clash with stdlib repr module

tests/test-hgweb-commands

@@ -50,7 +50,7 b' echo % branches'
 "$TESTDIR/get-with-headers.py" 127.0.0.1:$HGPORT '?cmd=branches'
 echo % changegroup
 "$TESTDIR/get-with-headers.py" 127.0.0.1:$HGPORT '?cmd=changegroup' \
-    | $TESTDIR/repr.py
+    | $TESTDIR/printrepr.py
 echo % stream_out
 "$TESTDIR/get-with-headers.py" 127.0.0.1:$HGPORT '?cmd=stream_out'
 echo % failing unbundle, requires POST request

tests/test-simplemerge-cmd

@@ -47,7 +47,7 b' cat orig >> binary-local'
 python simplemerge -p binary-local base other
 
 echo '% binary file --text'
-python simplemerge -a -p binary-local base other 2>&1 | $TESTDIR/repr.py
+python simplemerge -a -p binary-local base other 2>&1 | $TESTDIR/printrepr.py
 
 echo '% help'
 python simplemerge --help