Fix two comments related to error handling

Signed-off-by: NPhilipp Hahn <hahn@univention.de>

include/libvirt/virterror.h

@@ -206,7 +206,7 @@ typedef enum {
     VIR_ERR_INVALID_STORAGE_VOL = 47,	/* invalid storage vol object */
     VIR_WAR_NO_STORAGE = 48,		/* failed to start storage */
     VIR_ERR_NO_STORAGE_POOL = 49,	/* storage pool not found */
-    VIR_ERR_NO_STORAGE_VOL = 50,	/* storage pool not found */
+    VIR_ERR_NO_STORAGE_VOL = 50,	/* storage volume not found */
     VIR_WAR_NO_NODE = 51,		/* failed to start node driver */
     VIR_ERR_INVALID_NODE_DEVICE = 52,	/* invalid node device object */
     VIR_ERR_NO_NODE_DEVICE = 53,	/* node device not found */

python/libvirt-override.py

@@ -79,7 +79,7 @@ class libvirtError(Exception):
 # register the libvirt global error handler
 #
 def registerErrorHandler(f, ctx):
-    """Register a Python written function to for error reporting.
+    """Register a Python function for error reporting.
        The function is called back as f(ctx, error), with error
        being a list of information about the error being raised.
        Returns 1 in case of success."""