Fix overfull box

ch-one-dim-ints-sv.tex

@@ -1613,9 +1613,9 @@ \subsection{Path independent integrals}
 sufficient for a star-shaped $U$.
 
 \begin{proof}
-Suppose $U$ is star-shaped with respect to $p=(p_1,p_2,\ldots,p_n) \in U$.
+Suppose $U$ is a star-shaped domain with respect to $p=(p_1,p_2,\ldots,p_n) \in U$.
 Given $x = (x_1,x_2,\ldots,x_n) \in U$, define the path $\gamma \colon [0,1] \to U$ as
-$\gamma(t) := (1-t)p + tx$, so $\gamma^{\:\prime}(t) = x-p$.  Then let
+$\gamma(t) := (1-t)p + tx$, so $\gamma^{\:\prime}(t) = x-p$.  Let
 \begin{equation*}
 f(x) := \int_{\gamma} \omega
 =