Make git commit -m more specific to just the .nimble file to avoid

sweeping up unintended changes in the commit.  Could maybe make the
old behavior optional if anyone asks for it..

Also, consistently use "Error" rather than "error".

nrel.nim

@@ -96,11 +96,12 @@ proc nrel(vsn="", bump=patch, upDeps=false, msg="", stage=push, title="",
   let msg = if msg.len != 0: msg else: "Bump versions pre-release"
   let newV = nimbleUp(vsn, bump, upDeps, dryRun)
   if stage == nimble: quit()
-  run "git commit -am \'" & msg & "\'", "error committing version bump",5,dryRun
+  run "git commit -m \'" & msg & "\' " & nimblePath(),
+      "Error committing version bump",5,dryRun
   if stage == commit: quit()
-  run "git tag " & newV, "error adding " & newV & " tag", 6, dryRun
+  run "git tag " & newV, "Error adding " & newV & " tag", 6, dryRun
   if stage == tag: quit()
-  run "git push; git push --tags", "error pushing to main GH branch", 7, dryRun
+  run "git push; git push --tags", "Error pushing to main GH branch", 7, dryRun
   if stage == push: quit()
   run "gh release create \'"&newV&"\' -t '"&title&"' -F '"&rNotes&"'",
       "Error running gh release create; Manually do it on github", 8, dryRun