Match rustc beta versions

The rust_compiler_version proc extracts the Rust compiler version from
the "rustc --version" output.  For a beta compiler, the output looks
like:

    rustc 1.60.0-beta.6 (7bccde197 2022-03-22)

This patch slightly relaxes the regexp -- removing a space -- so that
this can be understood by this proc.

diff --git a/gdb/testsuite/lib/rust-support.exp b/gdb/testsuite/lib/rust-support.exp
index 0d39566df73d24af0d560577b6883e8fb42010ed..85e5b021e21bd19f74f3a617fcb35bc1e2100d9d 100644 (file)
--- a/gdb/testsuite/lib/rust-support.exp
+++ b/gdb/testsuite/lib/rust-support.exp
@@ -104,7 +104,7 @@ gdb_caching_proc rust_compiler_version {
     } else {
        set output [lindex [remote_exec host "$rustc --version --verbose"] 1]
        foreach line [split $output \n] {
-           if {[regexp "rustc (\[0-9.\]+) .*\$" $output ignore version]} {
+           if {[regexp "rustc (\[0-9.\]+).*\$" $output ignore version]} {
                return $version
            }
        }