pathspec commit did not match any files known to git

引號居然也能出問題：

C:\lysoftware\gitprj\fsdgit>git commit -m 'first commit'
error: pathspec 'commit'' did not match any file(s) known to git

C:\lysoftware\gitprj\fsdgit>git commit -m "first commit"
[master (root-commit) dc2093a] first commit
 93 files changed, 4453 insertions(+)
 create mode 100644 .classpath
 create mode 100644 .project
 create mode 100644 .settings/org.eclipse.core.resources.prefs
 create mode 100644 .settings/org.eclipse.jdt.apt.core.prefs
 create mode 100644 .settings/org.eclipse.jdt.core.prefs
 create mode 100644 .settings/org.eclipse.m2e.core.prefs