populate: give sizes in rsync's log in units of 1024

rsync gives sizes in units of 1000 for two apostrophes, and in units of
1024 for three, which the shell implementation asks for.  rsync-units
checks it.

1 files changed, 3 insertions, 2 deletions

diff --git a/pkgs/populate/src/rsync.rs b/pkgs/populate/src/rsync.rs
index dd61b03..78022ab 100644
--- a/pkgs/populate/src/rsync.rs
+++ b/pkgs/populate/src/rsync.rs
@@ -108,10 +108,11 @@ pub fn transfer(context: &Context, config: &Config, source_path: &str, path: &st
         command.arg("--insecure-links");
     }
     // Each item gets logged with what changed about it, and its size, as
-    // transferred and in total.
+    // transferred and in total, in units of 1024, which three apostrophes
+    // ask for.
     command
         .arg("--itemize-changes")
-        .arg("--out-format=%i %n%L %''b/%''l")
+        .arg("--out-format=%i %n%L %'''b/%'''l")
         .arg("--info=backup,del,copy,misc,mount,name,nonreg,remove,skip,symsafe")
         // Nothing relies on the times of directories and symlinks, and
         // keeping them would log a line for each directory changed.