Misc. typos

Found via `codespell` and `grep`

3 files changed, 3 insertions, 3 deletions

diff --git a/src/util/README b/src/util/README
index 53530ad0c..254e3fa14 100644
--- a/src/util/README
+++ b/src/util/README
@@ -4,6 +4,6 @@ This directory contains a variety of utility code.
 
 To do:
 
-* Merge with 'helper' into this direcotry.
+* Merge with 'helper' into this directory.
 * Move individual files to more appropriate directories.
 * Split into three sub-directories: numeric, color, svg.
diff --git a/src/util/expression-evaluator.h b/src/util/expression-evaluator.h
index 50ff3fb70..ace27339f 100644
--- a/src/util/expression-evaluator.h
+++ b/src/util/expression-evaluator.h
@@ -40,7 +40,7 @@
  * expression as it goes along, and does not create a parse tree or
  * anything, and will not optimize anything. It uses doubles for
  * precision, with the given use case, that's enough to combat any
- * rounding errors (as opposed to optimizing the evalutation).
+ * rounding errors (as opposed to optimizing the evaluation).
  *
  * It relies on external unit resolving through a callback and does
  * elementary dimensionality constraint check (e.g. "2 mm + 3 px * 4
diff --git a/src/util/share.h b/src/util/share.h
index 6e5a24d71..6e98c5258 100644
--- a/src/util/share.h
+++ b/src/util/share.h
@@ -80,7 +80,7 @@ private:
         return ptr_shared(string);
     }
 
-    //This class (and code usign it) assumes that it never has to free this
+    //This class (and code using it) assumes that it never has to free this
     //pointer, and that the memory it points to will not be freed as long as a
     //ptr_shared pointing to it exists.
     char const *_string;