tests: use \r\n for log messages in WSL

Bash in Windows Subsystem for Linux (WSL) requires it for some reason.

(This is one of several commits to support use of WSL for the tests.)

Ref: https://github.com/curl/curl/pull/3899

diff --git a/tests/runtests.pl b/tests/runtests.pl
index 63bd2da68d8205d286070962dc16fc37f6cf8d5d..737fbe27e8715c7d8543f3ab75c47431a9df6ebe 100755 (executable)
--- a/tests/runtests.pl
+++ b/tests/runtests.pl
@@ -206,6 +206,9 @@ my $valgrind_tool;
 my $gdb = checktestcmd("gdb");
 my $httptlssrv = find_httptlssrv();
 
+my $uname_release = `uname -r`;
+my $is_wsl = $uname_release =~ /Microsoft$/;
+
 my $has_ssl;        # set if libcurl is built with SSL support
 my $has_largefile;  # set if libcurl is built with large file support
 my $has_idn;        # set if libcurl is built with IDN support
@@ -324,7 +327,12 @@ my $tortalloc;
 #
 sub logmsg {
     for(@_) {
-        print "$_";
+        my $line = $_;
+        if ($is_wsl) {
+            # use \r\n for WSL shell
+            $line =~ s/\r?\n$/\r\n/g;
+        }
+        print "$line";
     }
 }