fix several typos in documentation and comments (#12553)

3 files changed, 5 insertions, 5 deletions

diff --git a/lib/system/gc_regions.nim b/lib/system/gc_regions.nim
index 797eeeebf..b7d1d302b 100644
--- a/lib/system/gc_regions.nim
+++ b/lib/system/gc_regions.nim
@@ -213,7 +213,7 @@ proc dealloc(r: var MemRegion; p: pointer; size: int) =
   if it.typ != nil and it.typ.finalizer != nil:
     (cast[Finalizer](it.typ.finalizer))(p)
   it.typ = nil
-  # it is benefitial to not use the free lists here:
+  # it is beneficial to not use the free lists here:
   if r.bump -! size == p:
     dec r.bump, size
   when false:
diff --git a/lib/system/io.nim b/lib/system/io.nim
index a3ac235a9..76bf41b11 100644
--- a/lib/system/io.nim
+++ b/lib/system/io.nim
@@ -115,8 +115,8 @@ proc c_fprintf(f: File, frmt: cstring): cint {.
 proc c_fputc(c: char, f: File): cint {.
   importc: "fputc", header: "<stdio.h>".}
 
-## When running nim in android app stdout goes no where, so echo gets ignored
-## To redreict echo to the android logcat use -d:androidNDK
+## When running nim in android app, stdout goes nowhere, so echo gets ignored
+## To redirect echo to the android logcat, use -d:androidNDK
 when defined(androidNDK):
   const ANDROID_LOG_VERBOSE = 2.cint
   proc android_log_print(prio: cint, tag: cstring, fmt: cstring): cint
diff --git a/lib/system/sysstr.nim b/lib/system/sysstr.nim
index 6201a1c74..853397e0a 100644
--- a/lib/system/sysstr.nim
+++ b/lib/system/sysstr.nim
@@ -325,7 +325,7 @@ proc setLengthSeq(seq: PGenericSeq, elemSize, newLen: int): PGenericSeq {.
     # cell is aliased by another pointer (ie proc parameter or a let variable).
     # This is a tough problem, because even if we don't zeroMem here, in the
     # presence of user defined destructors, the user will expect the cell to be
-    # "destroyed" thus creating the same problem. We can destoy the cell in the
+    # "destroyed" thus creating the same problem. We can destroy the cell in the
     # finalizer of the sequence, but this makes destruction non-deterministic.
     zeroMem(cast[pointer](cast[ByteAddress](result) +% GenericSeqSize +%
            (newLen*%elemSize)), (result.len-%newLen) *% elemSize)
@@ -361,7 +361,7 @@ proc setLengthSeqV2(s: PGenericSeq, typ: PNimType, newLen: int): PGenericSeq {.
         # cell is aliased by another pointer (ie proc parameter or a let variable).
         # This is a tough problem, because even if we don't zeroMem here, in the
         # presence of user defined destructors, the user will expect the cell to be
-        # "destroyed" thus creating the same problem. We can destoy the cell in the
+        # "destroyed" thus creating the same problem. We can destroy the cell in the
         # finalizer of the sequence, but this makes destruction non-deterministic.
         zeroMem(cast[pointer](cast[ByteAddress](result) +% GenericSeqSize +%
               (newLen*%elemSize)), (result.len-%newLen) *% elemSize)