Revert "Get rid of unicode quotes (#1140)"

This reverts commit f78126bfd6b6c8477fcdbc09b2f98772dbe9a1e7. There
really is no need for such a massive change...

1 files changed, 2 insertions, 2 deletions

diff --git a/src/libexpr/common-opts.cc b/src/libexpr/common-opts.cc
index 6b31961d34..06d6ed87df 100644
--- a/src/libexpr/common-opts.cc
+++ b/src/libexpr/common-opts.cc
@@ -13,7 +13,7 @@ bool parseAutoArgs(Strings::iterator & i,
     string arg = *i;
     if (arg != "--arg" && arg != "--argstr") return false;
 
-    UsageError error(format("'%1%' requires two arguments") % arg);
+    UsageError error(format("‘%1%’ requires two arguments") % arg);
 
     if (++i == argsEnd) throw error;
     string name = *i;
@@ -46,7 +46,7 @@ bool parseSearchPathArg(Strings::iterator & i,
     const Strings::iterator & argsEnd, Strings & searchPath)
 {
     if (*i != "-I") return false;
-    if (++i == argsEnd) throw UsageError("'-I' requires an argument");
+    if (++i == argsEnd) throw UsageError("‘-I’ requires an argument");
     searchPath.push_back(*i);
     return true;
 }