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-rw-r--r--doc/tclvars.n3
1 files changed, 2 insertions, 1 deletions
diff --git a/doc/tclvars.n b/doc/tclvars.n
index 27f9cc2..b126b7f 100644
--- a/doc/tclvars.n
+++ b/doc/tclvars.n
@@ -102,7 +102,8 @@ This variable is only used when initializing the \fBauto_path\fR variable.
.TP
\fBenv(TCL_INTERP_DEBUG_FRAME)\fR
.
-If existing, it has the same effect as running \fBinterp debug {} -frame 1\fR
+If existing, it has the same effect as running \fBinterp debug\fR
+\fB{} -frame 1\fR
as the very first command of each new Tcl interpreter.
.RE
.TP