various: remove typo/unusual spelling

Wikitionary says that "noone" is known, but not preferred by a large margin.
(It's also an obsolete spelling of "noon".)

src/core/execute.c

@@ -3263,7 +3263,7 @@ static int setup_credentials_internal(
                 /* Determine if we should actually install the prepared mount in the final location by bind
                  * mounting it there. We do so only if the mount is not established there already, and if the
                  * mount is actually non-empty (i.e. carries at least one credential). Not that in the best
-                 * case we are doing all this in a mount namespace, thus noone else will see that we
+                 * case we are doing all this in a mount namespace, thus no one else will see that we
                  * allocated a file system we are getting rid of again here. */
                 if (final_mounted)
                         install = false; /* already installed */

src/shared/base-filesystem.c

@@ -43,7 +43,7 @@ static const BaseFilesystem table[] = {
         { "run",   0555, NULL,                         NULL, true },
         /* We don't add /tmp/ here for now (even though it's necessary for regular operation), because we
          * want to support both cases where /tmp/ is a mount of its own (in which case we probably should set
-         * the mode to 1555, to indicate that noone should write to it, not even root) and when it's part of
+         * the mode to 1555, to indicate that no one should write to it, not even root) and when it's part of
          * the rootfs (in which case we should set mode 1777), and we simply don't know what's right. */
 
         /* Various architecture ABIs define the path to the dynamic loader via the /lib64/ subdirectory of